Ryūsui Seiryōin

is a Japanese novelist, active in mystery and various other fields. He was born in 1974, in Hyōgo Prefecture, Japan. He won the 2nd Mephisto Prize in 1996 while in Kyoto University, and started to work as a novelist. After that, Ryusui published over 60 novels. His works are always controversial. The JDC (Japan Detectives Club) series has inspired tribute novels by authors like Ōtarō Maijō and Nisio Isin.

In 2007, he achieved the publication of the series, "What a perfect world!", for 12 consecutive months. In the same year, he carried out "Doumo tour", the autograph sessions for 12 consecutive months held in Japanese major cities, and made a great success.

On May 1, 2009, he launched "bbbcircle", his official website, with Kai Chamberlain, a Canadian cartoonist.

Style His works defy not only the common wisdom of novels but general knowledge in the broad sense and give new values to readers. His mystery novels, particularly the JDC series, are known for genre-busting metatextual complexity.

Works in English translation King In the Mirror: The Reflection of Michael Jackson (translated from Japanese by the author himself, The BBB: Breakthrough Bandwagon Books, 2012)

As translator Seiryoin has been working as a translator from Japanese into English since 2012.

Short mystery stories Hiroshi Mori "The Girl Who Was the Little Bird" (The BBB: Breakthrough Bandwagon Books, 2013) "A Pair of Hearts" (The BBB: Breakthrough Bandwagon Books, 2014) "I'm In Debt to Akiko" (The BBB: Breakthrough Bandwagon Books, 2014) "Silent Prayer In Empty" (The BBB: Breakthrough Bandwagon Books, 2015) "Kappa" (The BBB: Breakthrough Bandwagon Books, 2015) Kenichi Sobu "The Hopeless Dream" (The BBB: Breakthrough Bandwagon Books, 2012) "Your Melody" (The BBB: Breakthrough Bandwagon Books, 2014)

The Gifted series by Ryosuke Akizuki "The Gifted Vol.3: The Skydiving Club" (The BBB: Breakthrough Bandwagon Books, 2014) "The Gifted Vol.4: The Phantom of Gemini" (The BBB: Breakthrough Bandwagon Books, 2015)

Urban Legend Detectives Case series by Kyosuke Tsumiki "Urban Legend Detectives Case 1: The Merry's Mail" (The BBB: Breakthrough Bandwagon Books, 2013) "Urban Legend Detectives Case 2: Solitary Hide and Seek" (The BBB: Breakthrough Bandwagon Books, 2013) "Urban Legend Detectives Case 3: The Kunekune (Dancing White Shadow)" (The BBB: Breakthrough Bandwagon Books, 2014) The Case Diary of Chinami Chiba series by Takafumi Takada "Three Little Bonzes: The Case Diary of Chinami Chiba" (The BBB: Breakthrough Bandwagon Books, 2014) a mystery short story combined with the logic puzzle, Knights and Knaves "A Goat on a Boat to Float: The Case Diary of Chinami Chiba" (The BBB: Breakthrough Bandwagon Books, 2015) a mystery short story combined with the river crossing puzzleThe Sky Crawlers series by Hiroshi Mori "The Sky Crawlers" (The BBB: Breakthrough Bandwagon Books, 2017) "None But Air" (The BBB: Breakthrough Bandwagon Books, 2018) "Down To Heaven" (The BBB: Breakthrough Bandwagon Books, 2019) "Flutter Into Life" (The BBB: Breakthrough Bandwagon Books, 2020) "Cradle the Sky" (The BBB: Breakthrough Bandwagon Books, 2021) "Sky Eclipse" (The BBB: Breakthrough Bandwagon Books, 2022) S&M'' Series by Hiroshi Mori "The Perfect Insider" (The BBB: Breakthrough Bandwagon Books, 2023)

Interviews Becoming the Best Interviewer In the World: The BBB Interview Selection, interviewee: Yohei Hayakawa (The BBB: Breakthrough Bandwagon Books, 2013) Kaiten-sushi Saves the World: The BBB Interview Selection, interviewee: Nobuo Yonekawa (The BBB: Breakthrough Bandwagon Books, 2013) Mountaineering, Photographs, and World Heritage Sites: The BBB Interview Selection'', interviewee: Hiroyuki Nakada (The BBB: Breakthrough Bandwagon Books, 2014)

Works JDC series Paperback edition Cosmic -Seikimatsu Tantei Shinwa- Joker -Kyuyaku Tantei Shinwa- Carnival Eve -Jinrui Saidai no Jiken- (December 1997, ) Carnival -Jinrui Saigo no Jiken- (April 1999, ) Carnival Day -Shinjinrui no Kinenbi- (September 1999, ) Saimonke Jiken Zempen -Gokujo Magic Circus- (January 2004, ) Saimonke Jiken Kouhen -Gekokujo Masterpiece- (February 2004, ) Pocketbook edition Cosmic -Ryu- Joker -Sei- Joker -Ryo- Cosmic -Sui- The pocketbook edition suggests you read the two volumes of "Joker" between the volumes of "Cosmic"—Sei/Ryo IN Ryu/Sui. Carnival -Ichirin no Hana-(January 2003, ) Carnival -Nirin no Kusa- (February 2003, ) Carnival -Sanrin no Sou- (March 2003, ) Carnival -Yonrin no Gyu- (April 2003, ) Carnival -Gorin no Sho- (May 2003, ) Saimonke Jiken I -Kijutsu ga Kitarite Fue wo Fuku- (April 2008, ) Saimonke Jiken II -White and Night- (February 2008, ) Saimonke Jiken III -Saimonke no Ichizoku- (May 2008, ) JDC manga Exstra Jorker -JOE- Exstra Jorker -KER- Cosmic Comics -AND- Cosmic Comics -END- JDC tribute books Tsukumojuku by Otaro Maijo Double Down Kankuro by Ishin Nishio Triple Play ScaredCraw by Ishin Nishio Tantei Gishiki I by Eiji Otsuka and Chizu Hashii Tantei Gishiki II by Eiji Otsuka and Chizu Hashii Tantei Gishiki III by Eiji Otsuka and Chizu Hashii Tantei Gishiki IV by Eiji Otsuka and Chizu Hashii Tantei Gishiki V by Eiji Otsuka and Chizu Hashii Shoichi Kimura series Paperback edition 19 Box -Shin Mystery Souseki- L -Zennihon Janken Tournament- U -Nihon Kokumin Zenin Sanka TV Shin Kikaku- Pocketbook edition W(Double) Drive In Zennihon Janken Tournament Okusenmannin no Ningen CM Scandal Top Run and Land series Top Run 1: Koko ga Saizensen Top Run 2: Koibito ga Yukaihan Top Run 3: Minoshirokin Loan Top Run 4: Quiz Daigyakuten Top Run 5: Saishuuwa ni Sennen Top Run Final: Daikoukai wo Run Top Land 2001: Tenshi Episode 1 Top Land 1980: Shinshi Episode 1 Top Land 2002: Senshi Episode 1 Top Run and Land Kan Tokuma series Toku Made Yaru Toku Matsu -Yagiritei Jiken- Toku Maru What a Perfect World! series Done for Kodansha Box—all twelve volumes in one year. What a perfect world! Book.1 ◆One Ace What a perfect world! Book.2 ◆Two to Tango What a perfect world! Book.3 ◆Three Cheers What a perfect world! Book.4 ◆Four Winds What a perfect world! Book.5 ◆Five-star What a perfect world! Book.6 ◆Sixth Sense What a perfect world! Book.7 ◆Seventh Heaven What a perfect world! Book.8 ◆Figure of Eight What a perfect world! Book.9 ◆On the Cloud Nine What a perfect world! Book.10◆Ten Commandments What a perfect world! Book.11◆Eleven-plus What a perfect world! Book.12◆Perfect Twelve Others Himitsuya Red Himitsuya White Himitsuya Bunko Shitteru Kai including "Himitsuya Red","White" and "Himitsuya Black", newly written. Himisshitsu Bon Himisshitsu Bon Quiz Show Mystereal Chara Net Chara Net Ai$tantei no Jikenbo Chara Net complete edition Ai$tantei novel Burandisshu? Seikougaku Chara Kyoju 40million yen tokusuru hanashi Redbook -Waltz for Rain- Cosmic Zero -Japan Annihilation Plan- B/W(Black or White) -The institute for perfect crimes- Forgetting Love King in the Mirror