Mark

The suspense horror/dark fantasy story is set in Tokyo, which is haunted by mysterious "ghouls" who are devouring humans. People are gripped by the fear of these ghouls whose identities are masked in mystery.

Akihito Kanbara is a high school student who apparently has a Youmu lineage and a peculiar regenerative ability that exceeds that of a normal human's. In an unexpected encounter, Akihito saves a classmate named Mirai Kuriyama, who was about to jump off the school building.

A teen boy that fell in love with a girl in a dungeon. He starts out weak but as the story progresses he gets stronger.

Rintaro Okabe is a self-proclaimed "mad scientist" who believes that an international scientific organization named SERN is conspiring to reshape the world according to its own interests. He and his friend Itaru Hashida inadvertently create a gadget able to send messages to the past.

After the outbreak of the unidentified virus "Lost Christmas" in 2029, Japan has been under the control of a multi-nation organization called GHQ. Ohma Shu is a 17 year old boy who has a psychic power in his right hand.