Blood Rain Zero

There were young men who formed a merchants' association to fight against local thugs and protect their businesses themselves.

But after constant clashes, they were accused of being gangsters themselves, blocking their future prospects.
At that moment, Hyun Tae-cheol, the core of the group, resolved:
"Rather than staying here like this, let's go up to Seoul and become true big shots."
Accepting his proposal, Kwon Tae-soo, Kim Min-kyu, and likeminded others joined him as they departed for the great city of Seoul.
A story of youth struggling desperately to survive in a strange and ruthless world.

— The chronicle of those fierce days.

Original Webtoon:
KakaoPage, Daum

Official Translations:
Japanese