Kousuke Kanemori is your average Japanese high school student... that is, until he is forcefully recruited to work for the United Nations' top secret undercover spy division. Will he be able to overcome his inexperience and become a super spy, or will he forever remain an amateur?

Collection of sidestories that take place between volumes 5 and 6 of the Big O manga.

In the 21st century, an earthquake devastated Japan, destroying Tokyo and leaving its people homeless and lawless. In the present, the ruins of Tokyo are a haven for thugs and street gangs, the most powerful of which is the ruthless Koryukai gang. Takateru Suga is visiting Tokyo on a mission: to find his sister Kiyomi, but things heat up once he discovers she's been kidnapped by the Koryukai themselves! With the help of a transvestite, colonel-turned-monk and a lot of firepower, Takateru must help defeat the Koryukai and save the city, or lose everything he holds dear!

A historical fantasy set in the ancient times about a traveling non-human buddy duo: a wickedly handsome man who hides his face and a clumsy little dragon who can't fly.

A mysterious young man in a mask travels with his companion, a small dragon who can turn into a boy. One day, they meet an old man who takes them in for the night. The masked man reveals he's on a pilgrimage to the Dragon King. The old man tries to to warn them of the dangers but to no avail. This is the journey of a mysterious masked man, whose name is strikingly similar to a famous person from the past, who is said to have been put to death by the emperor for his stunning beauty.