Owing to an increasing debt, Kaiji Itou ends up resuming his old lifestyle. One day, while walking on the street, he stumbles upon Yuuji End...

A project was launched where scientists discovered a mysterious substance that can interface directly with the human brain. This substance, ...

Miki Takekasa is an introverted high schooler who does not socialize with her classmates. However, she wants to know what "fun" really is, w...

Alternate version of the story featured in episode 64 of Hikaru no Go.