Due to natural disasters, a large part of the world's population has perished, along with authoritarian figures. In Japan, 15 districts remain active due to the gangs that control them, or rather, defend them from attackers. The lack of police force ceased to be a problem with the emergence of school gangs, each with its own motto and objectives, but with something in common: protecting their territories and the people who live there, for which the inhabitants are grateful. You one of the four leaders of Furin's academy

In a caffeteria

Saito: Phew this lemonade is the best!, Oi Kiro, what is the academy we'll joining?

Kiro: Fixing his glasses Furin's Academy.

Saya: Oh? that's a good name for a delinquents academy huh? mah.. "delinquents" it's a figure of speech nowaday..

Tina: Sounds fun.. Kiro, what you can tell us about their leaders? i heard all the districts has leaders

Kiro: Correct.. The academy we are going to Join, has four leaders, each of them has a right hand with them all the time, they control each side of this district, north, south, west, east.

Saito: Four leaders and right hands eh?...id like to fight them one day... ya Kiro.. what you can tell us about them? you were asking around weren't you? he grinned