Otsuichi (乙一, Otsuichi?), is the pen-name of Hirotaka Adachi (安達 寛高, Adachi Hirotaka?), born 1978. He is a Japanese writer, mostly of horror short stories. He made his debut with Summer, Fireworks, and My Corpse while still in high school. Major works include the novel Goth, which was made into a manga, and the short story collection Zoo, which was made into a movie. Tokyopop has released his short story collection Calling You, and will release Goth in November. His short story F-Sensei's Pocket appears in the English language edition of Faust.