Otsuichi (乙一, Otsuichi?), also known as Eiichi Nakata and Asako Yamashiro, is the pen-name of Hirotaka Adachi (安達 寛高), 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.
Honestly I prefer the first one, but the second part are also full of surprises. Compared to the plots, it is more focused on building the vibe and creep. Out of all, I like CLOSET most cause it is more close to mystery kind I like.
Only read the sandbox short story in another collection. It was a very short read, but also very effective. Otsuichi is good at making the whole situation familiar and therefore more chilling.