Togainu No Chi. Blood of the Guilty Dog. Volume 1

After the Third World War, Japan was left in ruins, split into eastern and western parts. In the ruins of the former capital - Toshima, a brutal and ruthless "game" is underway.
The winner is promised untold treasures and absolute power.... Besides competitors willing to do anything for such a stake, there are many other dangers lurking: enforcers from the "Whiskio" drug cartel, who kill anyone they deem a violator, and the loner Shiki, whose motives are unclear, and whose katana shows no mercy.
The main character, Akira, heads to the city with the task of defeating the king of the "game" - the legendary Il Re. Does the experienced street fighter have enough strength in this underground world of death matches?