Natsukashii Toshi e no Tegami: Graduation

Within the walls of Tokyo all seventeen year olds are hunted by militant teachers. Ooe Saku has just turned seventeen. Now he must fight for his life and he doesn't even know why.

Police detective Yosuke Kobayashi's life is changed forever after a serial killer notices something "special" about him. That same killer mutilates Kobayashi's wife and kick-starts a "multiple personality battle" within Kobayashi that pushes him into a complex tempest of interconnected deviants and evil forces. Earning praise for its consistently shocking plot lines and Tajima's clean, arresting art style, MPD-Psycho is the manga event of the decade! (Source: Dark Horse)