Description:

There's a game going around Japan called 'Rabbit Doubt'. The premise of the game is that all of the players are rabbits in a colony, and one amongst them is randomly chosen to be a wolf that infiltrated the group of rabbits. Every round, the wolf kills off a rabbit, and every round, the group tries to figure out which of the rabbits is actually a wolf in disguise. Sometimes the kids who play this game decide to meet up in person, and Yuu, Mitsuki, Rei, Hajime, Eiji, and Haruka have done just that. Unfortunately, one of them has decided to take on the mantle of the wolf and has already killed once. Who is the wolf, and can they be stopped before everyone meets a very unpleasant end? (Source: MU) Note: Chapter count includes a special chapter.

Description:

One night, senior high school second-year Nishina Airi is abducted. When she wakes, she is trapped in an uncanny, isolated space with other students from her high school and forced to take part in the "Werewolf Game." Thus, a death game filled with fear and terror that would pit "Werewolves" and "Villagers" against each other, force them to murder—a game with rules so absolute, defiance is punished by gruesome death—begins. (Source: Kawa Scans)

Description:

One day, Matsui Sakura receives an invitation to a "Revenge Game," and decides to attend. At the location indicated, she ends up locked in a dorm-like building with four of her classmates. It appears that the Revenge Game is being run by a wealthy classmate, Saionji, who was bullied so badly by some of the students that it ruined his life. Now he is taking his revenge, in a brutal game that allows him to have one of his former tormentors killed each morning. However, Sakura—a lonely, quiet, orphan girl—does not understand why she is there, unless it was due to her inaction in stopping the bullying of others. She's also the only one who received an invitation, while the others were abducted or tricked into attending. What is the final purpose of this game? (Source: MangaHelpers)

Description:

A deformed female human go out with a pumpkin on her head to kill all who bullied her in the past. (Source: MU)

Description:

Police squad inspector Hisashi Sawamura gets involved in a serial-killer case that puts his family in deadly peril. (Source: MU)