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Fujino Ōmori is a Japanese novelist, popularly known for writing the Is It Wrong to Try to Pick Up Girls in a Dungeon? (Danmachi) light novel series.^[1] His age is unknown, but he mentions in the afterword of the 14th volume of Is It Wrong to Try to Pick Up Girls in a Dungeon?^[2] from 2018 that he is under 30 years old.

In early 2013, Fujino Ōmori published his first novel in the Is It Wrong to Try to Pick Up Girls in a Dungeon? light novel series.^[3] It was submitted with the title Familia Myth to the 4th GA Bunko Award, where it won and received an offer to have it published by Bunko.^[4] The series is on going with 19 volumes till the date. Several spin-off series have been made.^{[5][unreliable source?]} Ōmori's light novel series have been adapted into manga, going up to 89 chapters in its adaptation of the first 5 books, and currently 13 chapters for its 7th book adaptation, skipping the 6th. It also got a television anime series, which began airing in 2015, and is currently in its 5th season which goes up to the 14th book.^[6] A mobile video game, Danmachi: Memoria Freese, was released in 2017.^[7]

In December 2020, Ōmori launched a manga series, titled Wistoria: Wand and Sword, with illustrations by Toshi Aoi in Kodansha's Bessatsu Shōnen Magazine.^[8]

• Is It Wrong to Try to Pick Up Girls in a Dungeon? (ダンジョンに出会いを求めるのは間違っているだろうか) (Illustrated by Suzuhito Yasuda, published by GA Bunko, 2013–present)
  • Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria (ダンジョンに出会いを求めるのは間違っているだろうか外伝 ソード・オラトリア) (Illustrated by Kiyotaka Haimura, published by GA Bunko, 2014–present)
  • Is It Wrong to Try to Pick Up Girls in a Dungeon? Familia Chronicle (Illustrated by Niritsu, published by GA Bunko, 2 volumes, 2017 -)
• Wistoria: Wand and Sword (杖と剣のウィストリア) (Illustrated by Toshi Aoi, published by Kodansha, serialized in Bessatsu Shōnen Magazine, 2020–present)