In Fukuoka, crime reaches new heights in the seedy underworld. In the Hakata ward of the city, there are various individuals with special talent that... more>> consists of professional killers, detectives, informants, and professional revenge seekers. Among those a so-called "killer of professional killers" is becoming more than just an urban legend. Private detective Banba is on the case, but when he uncovers a dark conspiracy, it may be the one curveball he can't hit. <<less

A side story to Hakata Tonkotsu Ramens.... more>>

A collection of short stories across the whole timeline. Each chapter is an individual story and can be read separately.

**Timeline of the short stories are as follows:
Ch. 1 - between volumes 1 and 2
Ch. 2 - prequel (mentions of volume 6)
Ch. 3 - post-volume 8
Ch. 4 - post-volume 8
Ch. 5 - around volume 3 <<less

Ikebukuro, Tokyo. The strongest killers from Hakata arrive in the city of Ikebukuro where unique individuals gather!... more>>

Zenji Banba and his partner Xianming Lin come to visit Tokyo City to see a baseball game when an unfortunate predicament leaves them with none of their possessions and money. Needing to make quick money, they take the request to hunt down a bounty hunter. Along their adventure in the ward of Ikebukuro they encounter the local residents, from the normal average high schooler or rowdy bounty hunters to the city legends that are the mischievous informant from Shinjuku and a super-human man in a bartender uniform. <<less