MPD-Psycho Volume Two finds multiple personality detective Kazuhiko Amamiya on a new case-which will result in even more personalities emerging inside his confused, scattered mind! A wave of grisly, imaginative schoolgirl suicides hits Tokyo! Investigating the scenes of these gruesome deaths, Amamiya and the colorful characters of the Isono Criminal Research Lab come across a new villain who knows about a key event from Amamiya's past. What does the white-haired Zenitsu have to do with the suicides, Amamiya's "barcode puzzle" theory, and a stuttering victim from a decades-old night of murder and destruction?