Following the death of his wife, Satoshi has sunk into depression and debt, much to the consternation of his daughter, high school student Kaede. To ease their debt, Satoshi tells Kaede he will track down a serial killer and collect the reward, but Satoshi disappears and Kaede must find out what happened to him. What appears to be a familiar mystery narrative takes unexpected turns into the depths of human emotion.—jakkepoes