Hokenshitsu no Shinigami

Hokenshitsu no Shinigami (保健室の死神, lit. "The Infirmary's Death God") is a Japanese manga written and illustrated by Shō Aimoto that appeared in Shueisha's Weekly Shōnen Jump magazine since September 2009.

Plot
Hokenshitsu no Shinigami follows the adventures of Itsuhito Hadesu, a newly recruited infirmary doctor at Tokofushi Middle School whose eccentric personality earns him the fear of fellow students. Meanwhile, swarming among them are Byōma, or Disease Demons, constantly infecting the minds of the emotionally ill. As a Shinigami, Hadesu is faced with the task of looking after his students and keeping them away from the Byōma.