A summer youth mystery in which two teenagers' bond becomes dangerously unstable.

The flight begins the night one of them says he killed his mother.

A fantasy adventure set on a sea of sand that crosses multiple worlds.

Under seven worlds and two suns, Reimei and her companions press forward.

A summer youth mystery centered on a skeleton found in an abandoned school building.

Four childhood friends chase the mystery of a corpse in a spacesuit.

A school-set coming-of-age detective story in which jealousy is used to expose lies.

A sharp-eyed senior who sees through lies and a boy who cannot lie face the case together.

A story in which a childlike demon queen and a death-metal bandman face an otherworldly crisis.

Yamada is summoned into the demon world and rushes to fulfill Velvet's wishes.