Bloody Monday.

About Bloody Monday

Bloody Monday is a Japanese manga series written by Ryō Ryūmon and illustrated by Kōji Megumi. It was serialized in Kodansha's shōnen manga magazine Weekly Shōnen Magazine from March 2007 to April 2009, with its chapters collected in 11 tankōbon volumes. A second series, Bloody Monday Season 2: Pandora no Hako, was serialized in the same magazine from October 2009 to April 2011, with its chapters collected in eight volumes. A third series, Bloody Monday Final Season, was serialized in the same magazine from June 2011 to March 2012, with its chapters collected in four volumes. A television drama adaptation was broadcast for two seasons in 2008 and 2010, respectively.