Fujino Ōmori is a Japanese author, popularly known for writing the Is It Wrong to Try to Pick Up Girls in a Dungeon? (Japanese: 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, Hepburn: Danjon ni Deai o Motomeru no wa Machigatteiru Darō ka), also known as Danmachi (ダンまち) light novel series. 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? from 2018 that he is under 30 years old.