Haru Shirogane is a weak-minded person who is constantly bullied while Taiga has traveled from across the sea in hopes of becoming the strongest man in the world. One night, the two meet up with Shun...

Kogorou Akechi is the founder of a private investigation firm known as the Boy Detectives' Club. Together, this group takes on cases both great and small. One of their junior members, Kensuke Hanasaki...

One day, a city suddenly disappears. Takuya, a professional by-the-contract courier and lone wolf, meets Yuki, the only survivor from the city's extinction. The two rely on a message from Yuki's fathe...