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Shinobu Kaitani

Shinobu Kaitani (甲斐谷 忍, Kaitani Shinobu, born September 24, 1967) is a manga artist from , renowned for creating psychologically intense series such as and , which delve into themes of , , and human cunning in competitive settings. A recipient of the prestigious Tezuka Prize in 1991 for his early work Mou Hitori no Boku (Another Me), Kaitani debuted professionally in 1993 and has since produced works serialized in major magazines, earning acclaim for his intricate plotting and character dynamics. Kaitani's career began with short series like Suisan Police Gang (1993, serialized in Shōkan Shōnen Jump) and Sommelier (1995, in Manga Allman), but he gained prominence with One Outs (1998–2006, Business Jump, 20 volumes), a baseball thriller centered on a cunning pitcher's mind games against opponents and team management. His breakthrough came with Liar Game (2005–2015, Weekly Young Jump, 19 volumes), which follows naive protagonist Nao Kanzaki as she navigates a treacherous tournament of lies and gambles alongside genius swindler Shinichi Akiyama, blending suspense with economic and philosophical undertones. The series has been adapted into two live-action Japanese TV drama seasons (2007 and 2010), a TV mini-series spin-off (Alice in Liar Game, 2012), and is slated for a new anime production by Madhouse in 2026. Notably, future One Piece creator Eiichiro Oda served as one of Kaitani's assistants during his early career. Beyond serialization, Kaitani's influence extends to international markets, with translated into European languages (such as and ) and but lacking an official English release, and inspiring a 2008 anime adaptation by . His works often feature protagonists who exploit intellect over physical prowess, reflecting a signature style that has solidified his status in the genre. In recent years, Kaitani has focused on concluding long-running projects while teasing potential expansions, including the 2025 announcement of new developments alongside the upcoming .

Early life and education

Upbringing

Shinobu Kaitani was born on September 24, 1967, in , , . Details about his family background remain scarce in public records. is a region known for its distinct local traditions and community-oriented environment.

Academic background

Shinobu Kaitani graduated from in 1986. He attended Nishio Middle School prior to high school. Following high school, Kaitani attended University, where he studied in the Department of Electronics within the Faculty of . He graduated from the program in 1990. Kaitani developed a passion for drawing from childhood. Kaitani entered the workforce in a regular job immediately after graduation. His educational background in engineering provided him with a structured, analytical foundation that contrasted with his later development as a .

Professional career

Debut and early works

Shinobu Kaitani entered the manga industry by winning the 2nd Prize at the 42nd in 1991 for his one-shot "Mou Hitori no Boku" (Another Me), which marked his initial recognition as a promising artist. This achievement, offered by to nurture new talent, provided early validation for his storytelling abilities. Following this, Kaitani made his professional debut with the serialization of "Midoriyama Police Gang" (also known as "Suisan Police Gans") in from January to June 1994, spanning issues 8 to 28 and collected into two volumes. The series followed a new solving cases at a rural station, blending action and mystery elements. During the serialization of "Midoriyama Police Gang," Kaitani served as a mentor to aspiring artist Eiichiro Oda, who worked as his assistant in 1994 for the final chapters (17–20). Oda, later the creator of One Piece, credited this experience with exposing him to professional workflows in Weekly Shōnen Jump. This early professional phase highlighted Kaitani's emerging role in the industry. In 1995, Kaitani contributed artwork to the series "Sommelier," serialized in Shueisha's Manga Allman from 1996 to 1999 across nine volumes, with story by Joh Araki. The manga explored the competitive world of sommeliers through intense wine-tasting challenges, emphasizing strategic deduction, sensory expertise, and interpersonal dynamics under pressure—themes of human behavior and intellect that foreshadowed Kaitani's later psychological narratives.

Breakthrough and major series

Kaitani's breakthrough came with the serialization of in Shueisha's magazine from October 1998 to July 2006, shifting his focus to the seinen demographic and pioneering a sports-strategy genre centered on psychological tactics in . This success paved the way for , which began serialization in February 2005 in Shueisha's and continued until January 2015, solidifying Kaitani's reputation in the gambling and niche through intricate and themes. Throughout the 2000s, Kaitani's career gained momentum within Shueisha's publications, as and the early volumes of attracted a dedicated readership, boosting his profile among mature audiences seeking intellectual narratives over traditional action. The series' rising acclaim led to key adaptations that enhanced Kaitani's visibility: received a 25-episode by , airing on from October 2008 to March 2009, while inspired a live-action TV series on Fuji TV starting in April 2007, followed by a second season in 2009 and a theatrical film, Liar Game: The Final Stage, in 2010, all contributing to broader mainstream recognition.

Later projects

Following the success of his earlier psychological thriller series, Kaitani ventured into new creative territories in the late 2010s and beyond. In 2019, he launched Shin Shinchō Kōki: Nobunaga-kun to Watashi (also known as New Nobunaga Chronicles: High School is a Battlefield), a serialized in Kodansha's Young Magazine. The series reimagines the life of warlord in a modern high school setting, blending with contemporary themes of and , and concluded after two years with its final chapters published in July 2021. In 2022, Kaitani collaborated with writer Takeshi Natsuhara, known for Kurosagi, on Kamo no Negi ni wa Doku ga Aru: Kamo Kyōju no Ningen Keizaigaku Kōgi (There is Poison in the Duck's Leek: Professor Kamo's Lecture on Human ), a financial serialized in Shueisha's . Illustrated by Kaitani, the story follows an eccentric economics professor who applies his "Camorism" theories to dismantle exploitative schemes in real-world settings, reflecting a shift toward collaborative projects that explore economic and social manipulation. As of October 2025, the series remains ongoing, with 12 volumes released and over 900,000 copies in circulation, indicating sustained popularity. Kaitani's recent activities also include adaptations of his established works. In August 2025, he officially announced the first television adaptation of , produced by and slated for release in 2026, marking a significant milestone in bringing his deception-themed narrative to after years of live-action versions. This development underscores Kaitani's evolving focus on historical reinterpretations and interdisciplinary collaborations, while leveraging his legacy in strategic storytelling.

Notable works

One Outs

One Outs is a baseball manga series written and illustrated by Shinobu Kaitani, serialized in Shueisha's Business Jump magazine from November 14, 1998, to August 15, 2006, spanning 168 chapters collected into 19 volumes for the main series. A sequel, One Outs: Miwaku no All-Star-hen (2008–2009), added 7 chapters in 1 volume, for a total of 175 chapters and 20 volumes. The series distinguishes itself within the sports genre by prioritizing intellectual confrontations and strategic maneuvering over traditional athletic depictions, centering on the high-stakes in . The plot revolves around Toua Tokuchi, a prodigious and master gambler renowned for his dominance in the underground game "," where players wager on achieving a single out in a simplified . During a training camp in Okinawa, Hiromichi Kojima, the star cleanup hitter and de facto leader of the struggling Lycaons team, encounters Tokuchi and challenges him to a One Outs , only to suffer a humiliating defeat. Intrigued by Tokuchi's unparalleled ability to read opponents and exploit weaknesses, Kojima recruits him to revitalize the perennial underdog team, leading to a tense partnership fraught with mind games as Tokuchi navigates the cutthroat world of pro through cunning tactics rather than sheer physical talent. Central to the narrative are Tokuchi's innovative strategies, including to manipulate batters into self-sabotage and economic incentives that turn games into high-risk gambles. A hallmark is his unique contract with the Lycaons: earning 5 million yen per out pitched while forfeiting 50 million yen per run allowed, which pressures him to perfection and forces the team to invest in his success, exemplified in schemes like the "Gyro Ball"—a deceptive that combines spin and to induce wild swings—or staging feigned injuries to disrupt opponents' morale. These "outs" maneuvers highlight Kaitani's exploration of in sports, where Tokuchi treats as a zero-sum psychological , often outwitting coaches, rivals, and even teammates through calculated bluffs and . The series garnered critical acclaim for its suspenseful buildup and innovative subversion of sports manga tropes, emphasizing mental endurance and ethical dilemmas in competitive athletics over rote victory montages. It influenced the genre by blending elements of and narratives, inspiring later works to incorporate strategic depth akin to titles like Kaiji. An adaptation by aired from October 7, 2008, to March 31, 2009, comprising 25 episodes that captured the manga's intense confrontations and propelled its popularity among seinen audiences.

Liar Game

Liar Game follows the story of Kanzaki Nao, a naive and exceptionally honest college student who receives an unexpected package containing 100 million yen and an invitation to the secretive tournament. In this brutal competition organized by a mysterious entity, participants must use , lies, and to steal money from opponents, with losers facing enormous debt. Unable to navigate the game's cutthroat dynamics alone, Nao seeks help from Akiyama Shinichi, a brilliant former con artist and expert recently released from after exposing a fraudulent scheme. Together, they form an unlikely alliance, employing Akiyama's strategic genius to outmaneuver cunning adversaries in escalating rounds of that test the limits of trust and morality. The was serialized in Shueisha's from February 17, 2005, to January 22, 2015, spanning 19 volumes that compile the complete storyline of the tournament's progression. Kaitani also produced supplementary one-shots, including : Roots of A, a 2011 collection of short stories that delves into character backstories, particularly Akiyama's university days and the events leading to his involvement in fraud exposure. These side pieces expand on the psychological foundations of the main cast without altering the core narrative. At its heart, Liar Game applies principles to dissect human behavior under pressure, showcasing mechanics like the minority game, where success hinges on anticipating and defying the majority's choices to minimize losses or maximize gains. The series highlights moral quandaries in scenarios of trust versus betrayal, as characters grapple with ethical boundaries—whether to cooperate for mutual benefit or exploit vulnerabilities for personal victory—often revealing how desperation amplifies innate tendencies toward dishonesty. These elements create tense, intellectual battles that prioritize cerebral strategy over physical action, drawing readers into layered analyses of probability, bluffing, and social engineering. The manga garnered significant acclaim for its innovative take on psychological thrillers, leading to multiple adaptations that underscore its cultural impact. It inspired two live-action television series: the first airing on Fuji TV from April to June 2007, and a second season from November 2009 to March 2010. Further expansions include the 2012 spin-off drama Alice in and films Liar Game: Reborn (2012) and : The Final Stage (2014), both directed by Hiroaki Matsuyama. A remake series aired on tvN in 2014, and in August 2025, an anime adaptation was announced for a 2026 premiere by studio, marking the franchise's first animated incarnation.

Other publications

In addition to his major series, Shinobu Kaitani has contributed to several lesser-known , often exploring themes of , , and in niche settings. One such work is (1996–1999), which he illustrated in collaboration with writer Araki Joh for Manga Allman magazine; the series delves into the intrigue of the industry through the story of a talented navigating envy and rivalries abroad. Another early project is Midoriyama Police Gang (1994), serialized in , where Kaitani depicted a rookie officer solving crimes at a coastal , blending and in a brief 20-chapter run that showcased his initial foray into procedural storytelling. Kaitani's debut one-shot Mou Hitori no Boku (1991) won the Tezuka Prize, marking his early recognition in the industry. In the mid-2010s, Kaitani authored Winner's Circle e Yōkoso (2011–2016), a comedy-drama initially serialized in Jump X magazine (2011–2014) and continuing online in Tonari no Young Jump (2014–2016), focusing on a directionless college student drawn into and betting circles, where he uncovers the intense dynamics of competition and fortune among a group of enthusiasts. More recently, Kaitani illustrated Kamo no Negi ni wa Doku ga Aru: Kamo Kyōju no "Ningen" Keizagaku Kōgi (2022–ongoing), written by Natsuhara for Grand Jump, centering on a genius who uses psychological insights and disguises to dismantle scams and pyramid schemes, emphasizing "suckerism" in human economic behavior. Kaitani also created the short series Shin Shinchō Kōki: Nobunaga-kun to Watashi (2019–2021), serialized across Weekly Young Magazine and Monthly Young Magazine, which humorously reimagines historical warlords like Oda Nobunaga as clones in a delinquent-filled high school, highlighting battles of wit and hierarchy in a modern context. These publications reflect Kaitani's recurring interest in psychological tactics and high-stakes environments, though on a smaller scale than his breakthrough works.

Artistic style and legacy

Themes and influences

Shinobu Kaitani's manga frequently explore themes of psychological manipulation and game theory applied to social interactions, where characters navigate high-stakes scenarios through strategic deception and calculated risks. These narratives delve into human greed as a driving force, portraying how self-interest exposes vulnerabilities and alters alliances in competitive environments. Redemption emerges as a counterpoint, often achieved through intellectual prowess, as protagonists leverage logic and empathy to outmaneuver adversaries and restore moral balance. Kaitani's influences stem from real-life observations, such as casual pub conversations that inspired plot elements involving intricate schemes. His background in at University informs the precise, logical depictions of strategy in his works, reflecting a structured approach to problem-solving akin to . Early exposure to by artists like and Yuu Koyama also shaped his interest in character-driven stories centered on personal growth amid conflict. In terms of techniques, Kaitani employs dynamic paneling to build tension, prioritizing compositional flow to heighten during pivotal confrontations. His minimalistic art style focuses on expressive facial details and dialogue, eschewing elaborate action sequences to emphasize psychological depth and strategic dialogue. This evolution from sports-themed narratives to gambling-centric ones underscores his consistent interest in intellectual battles across genres.

Impact and recognition

Shinobu Kaitani received the prestigious Tezuka Prize in 1991 for his work Mou Hitori no Boku, marking an early key recognition in his career that paved the way for his professional debut two years later. While he has not garnered additional major literary awards in subsequent years, Kaitani's works have achieved significant commercial success, with selling over 6 million copies worldwide since its serialization from 2005 to 2015. This enduring popularity underscores his ability to captivate audiences through intricate narratives. Kaitani's legacy extends to influencing prominent creators in the industry and beyond. Notably, mangaka served as his assistant in 1994 during the serialization of Midoriyama Police Gang, a brief but formative period that provided Oda with early professional insights into manga production. Furthermore, creator has openly cited as a direct inspiration, drawing from its themes of high-stakes deception and financial desperation while developing his series amid personal economic struggles. In the realm of , Kaitani has played a pivotal role in popularizing psychological thrillers centered on intellect and strategy over physical confrontation. Works like and One Outs exemplify this by blending tense mind games with moral dilemmas, contributing to the genre's expansion and appeal to adult readers through their focus on human and ethical quandaries. His influence is evident in the numerous adaptations of his into live-action TV series, films, and now anime, which have broadened their reach and solidified their status in global pop culture up to 2025. As of November 2025, Kaitani remains active, with the announcement of 's first television by slated for 2026, reigniting interest in his catalog and highlighting the timeless relevance of his storytelling. This project, produced in collaboration with REMOW, promises to introduce his psychological suspense to new generations via .

References

  1. [1]
    KAITANI Shinobu - MangaUpdates
    Jul 15, 2017 · He received the prestigious Tezuka Prize in 1991 for Mou Hitori no Boku (Another Me). In 1993, his series Suisan Police Gang was serialized in Shoukan Shounen ...Missing: Award - | Show results with:Award -
  2. [2]
    Shinobu Kaitani - Lambiek Comiclopedia
    Aug 30, 2023 · Shinobu Kaitani is a mangaka from Kagoshima. Between 1998 and 2006 he made the baseball manga serial 'One Outs' in Business Jump.Missing: biography - | Show results with:biography -
  3. [3]
    Shinobu Kaitani's Liar Game Manga Gets TV Anime in 2026 at ...
    Aug 22, 2025 · In the story, a woman named Nao Kanzaki is caught in a dangerous high-stakes competition known as "Liar Game," and a genius con artist named ...
  4. [4]
    Shinobu KAITANI - Anime News Network
    Family name (in kanji): 甲斐谷 ; Given name (in kanji): 忍 ; Date of birth: 1967-09-24 ; Hometown: Kagoshima, Japan ; Web Diary / Blog: 甲斐谷忍 (@mangakap) | ...Missing: background early
  5. [5]
    [PDF] 地 元 経 済 界 が 見 た 鹿 大 - 鹿児島大学
    甲斐谷 忍さん. 漫画家. ○ profile. 1967年鹿児島市生まれ。86年鹿児島県立甲南高等学校卒業。 90年鹿児島大学工学部電子工学科卒業後、中越パルプ工業株. 式会社入社。91 ...
  6. [6]
    鹿児島出身の漫画家・甲斐谷忍氏 独占インタビュー
    Aug 5, 2022 · 西陵中学校、甲南高校、鹿児島大学を卒業しました。生まれも育ちも鹿児島。ちなみに趣味は競馬です。学生時代はミュージシャンになりたかったと言います。
  7. [7]
    ”日本の天才漫画家”甲斐谷忍「なぜ、騙されると分かっていても人は ...
    Apr 19, 2025 · 生年月日:1967年9月24日 · 出身地:鹿児島県 · 学歴:鹿児島大学 工学部 電子工学科 · 漫画家デビュー:1993年(1991年に手塚賞準入選).
  8. [8]
    Kaitani, Shinobu - MyAnimeList
    Given name: 忍. Family name: 甲斐谷. Birthday: Sep 24, 1967. Website: Member Favorites: 589. Birthplace: Kagoshima, Japan He received the prestigious Tezuka ...
  9. [9]
    Tezuka Award - Wikipedia
    The Tezuka Award (手塚賞, Tezuka Shō) is a semi-annual manga award offered by the Japanese publisher Shueisha since 1971Missing: debut | Show results with:debut
  10. [10]
    Midoriyama Police Gang | Manga - MyAnimeList.net
    Jan 25, 1994 · Published, Jan 25, 1994 to Jun 14, 1994 ; Genres, ActionAction, MysteryMystery ; Theme, DetectiveDetective ; Demographic, ShounenShounen.Missing: date | Show results with:date
  11. [11]
    Midoriyama Police Gang (manga) - Anime News Network
    Vintage: 1994 (serialized in Weekly Shonen Jump) ; Release dates: We have 2 ; Links: We have 1 ; Japanese staff. Japanese cast ; Story & Art: Shinobu Kaitani.
  12. [12]
  13. [13]
    Sommelier - MangaDex
    The story of Joe Satake, a Japanese sommelier ... Joh Araki, Kaitani Shinobu. Report. Upload Chapter. Read. 0. N/A. DramaSlice of Life. Publication: 1996, ...<|control11|><|separator|>
  14. [14]
    One Outs Baseball Manga to Get TV Anime This October - News
    Aug 6, 2008 · Shinobu Kaitani 's ONE OUTS baseball manga is being animated for television this October. Kaitani ( Liar Game , Sommelier ) drew the manga in Shueisha 's ...
  15. [15]
    Shinobu Kaitani's Liar Game Manga Ends in January - News
    Dec 31, 2014 · Shueisha 's Young Jump magazine is revealing on January 8 that Shinobu Kaitani 's Liar Game thriller manga will end in the eighth issue on January 22.
  16. [16]
  17. [17]
    One Outs | Manga - MyAnimeList.net
    14-day returnsToua Tokuchi, a master of gambling and mind games, holds the remarkable record of 499 wins and zero losses in One Outs, a simplified form of baseball.
  18. [18]
    One Outs (Manga) - TV Tropes
    It was adapted into a 25-episode anime series by Madhouse in 2008. The anime was produced by the team responsible for Akagi and Kaiji; the protagonist is ...<|control11|><|separator|>
  19. [19]
    Why One Outs Is the Gyakkyou Burai Kaiji: Ultimate Survivor ... - CBR
    Nov 18, 2021 · One Outs, true to its sports anime roots, follows a genius pitcher named Toa Tokuchi. He has won 499 matches of a game called One Outs.
  20. [20]
    One Outs Review: The Baseball Thriller That Changed Anime
    Jan 8, 2025 · Hiromichi Kojima, the ace batter for the Saikyou Saitama Lycaons, encounters the man after learning much about him from the streets. After ...Missing: plot summary
  21. [21]
    ONE OUTS Review: Games Within Games - Another Castle
    Apr 21, 2014 · One Outs was a baseball manga written by Kaitani Shinobu. It was adapted into an anime by our old friends at Madhouse, who brought us such classics as Black ...
  22. [22]
    One Outs | Manga - Reviews - MyAnimeList.net
    More than a sports manga with funny, action packed moments it deals a lot with the psychology & physical pressures of professional athletes in Baseball and ...
  23. [23]
    One Outs (TV) - Anime News Network
    One Outs (TV) ; Running time: 23 minutes per episode ; Number of episodes: 25 ; Vintage: 2008-10-07 to 2009-03-31.
  24. [24]
    Liar Game (manga) - Anime News Network
    Liar Game's Manga-Based Drama Gets Online Spinoff (Oct 15, 2009). Japan's ... Naver WEBTOON: "Although extremely rare, even if serialization does not proceed, we ...
  25. [25]
    Liar Game - Roots of A - MangaUpdates
    Jan 19, 2021 · Only 1 chapter on Akiyama though, it's more like a series of unrelated one-shots. Art style is the same as Liar game, and the short stories are ...
  26. [26]
    Liar Game (TV Series 2007–2010) - IMDb
    Rating 8/10 (2,543) The trusting and naive Nao suddenly finds herself participating in the mysterious Liar Game, a game in which players receive large sums of money and then have ...
  27. [27]
    Liar Game: Reborn - AsianWiki
    Liar Game: Reborn | Raia Gemu - Saisei - (2012) *movie; Alice in Liar Game (Fuji TV / 2012) *spin-off drama series; Liar Game (tvN / 2014) *drama series (remake) ...
  28. [28]
    Welcome to the Winners Circle (manga) - Anime News Network
    Welcome to the Winners Circle (manga) ; Story & Art: Shinobu Kaitani · Japanese companies ; Story & Art: Shinobu Kaitani · Publisher: Shueisha ; Chinese (Taiwan) ...
  29. [29]
    Kamo no Negi ni wa Doku ga Aru - MangaUpdates
    Oct 18, 2025 · Status in Country of Origin. 12 Volumes (Ongoing). Completely Scanlated? No. Anime Start/End Chapter. N/A. User Reviews. N/A. Forum. 0 topics, 0 ...
  30. [30]
    Shin Shinchou Kouki: Nobunaga-kun to Watashi - MyAnimeList
    Mar 25, 2019 · The manga's story centers on a high school full of delinquents, and its elite class that has clones of famous warlords from Japan's Warring States period ...
  31. [31]
    Kaitani Shinobu - MangaDex
    A story about a high school full of delinquents, and its elite class that has clones of famous warlords from Japan's Warring States period fighting it out.
  32. [32]
    あのマンガ家が進路に影響を及ぼした!? ヒットを生み続ける漫画家 ...
    Nov 17, 2022 · まずは甲斐谷先生が職業としてマンガ家を意識しはじめた頃の話をお聞かせください。 小学2年の時に、友人宅でお兄さん所有の『がきデカ』(山上たつひこ) ...
  33. [33]
    A game of greed and deception | South China Morning Post
    Oct 6, 2010 · Published in Japan's Weekly Young Jump magazine since 2005, Shinobu Kaitani's ... Style · PostMag · 100 Top Tables · HK Racing · Young Post ...<|control11|><|separator|>
  34. [34]
    Shinobu Kaitani's Liar Game Manga Receives TV Anime Adaptation ...
    The original manga ran for over a decade, from 2005 to 2015, and has sold over 6 million copies worldwide. With Madhouse behind the adaptation, Liar Game is ...
  35. [35]
    ----First of all, would you please tell us what made you decide to ...
    ----Was there anyone in college who had the same goal of becoming a manga author as you? Nope, nobody. Actually you know I hid the fact that I drew manga from a ...Missing: background | Show results with:background
  36. [36]
    'Squid Game' Director Hwang Dong-hyuk on Netflix's Hit ... - Variety
    Sep 24, 2021 · “When I started, I was in financial straits myself and spent much time in cafes reading comics including 'Battle Royale' and 'Liar Game.' I came ...
  37. [37]
    Squid Game's creator: 'I'm not that rich. It's not like Netflix paid me a ...
    Oct 26, 2021 · “I read Battle Royal and Liar Game and other survival game comics. I related to the people in them, who were desperate for money and success.
  38. [38]
    Liar Game & One Outs - Past The Screen
    Feb 4, 2017 · Both are psychological thrillers, shrouded in a tense atmosphere with twists that leave you breathless. Overall, they are pretty well-thought-out.Missing: trajectory 2000s
  39. [39]
    YumCha! - Beyond Squid Game: 15 Other Asian Death Game Thrillers
    Oct 25, 2021 · Based on Kaitani Shinobu's manga, Japan's live-action Liar Game franchise started out in 2007 as a late-night series starring Toda Erika and ...<|separator|>
  40. [40]
    TV anime “LIAR GAME,” Official Website
    Aug 23, 2025 · LIAR GAME has continued to generate hype across various forms of media over the years, including a live-action drama in 2007, a live-action film ...Missing: 2014 | Show results with:2014