Togainu no Chi  

咎狗の血, Togainu no Chi ZERO

The Igura is a lethal combat sport played in the destroyed city of Toshima during a post-apocalyptic era. In this world where the underworld reigns supreme, Akira is incarcerated for committing murder. As an alternative to serving time, he's given the chance to win his freedom by participating in the game. Regardless of whether he emerges victorious, meets a tragic end, or discovers love, Akira will face an intense battle for survival! This story is inspired by the popular bishonen game.

Togainu no Chi had six volumes published in English by Tokyopop from January 13, 2009 to November 30, 2010, before the publisher became defunct.