Tonogai's first work as both artist and writer follows six Japanese teenagers involved in an online mobile-phone game meeting for the first time. The game they love, Rabbit Doubt, consists of characters playing "rabbits" that must find out who among them is the "wolf." The new friends get along famously for one night of fun until they wake up the next day to find themselves prisoners in a warehouse and tattooed with barcodes. What follows is one part Saw and one part Cube with a dash of Battle Royale style as the characters are picked off one by one while trying to figure out who among them is the "wolf."

Items reads manga-style, right to left.