Valhalla District 3

In 'Valhalla District 3', where all crime is permitted, the only way to live like a human being is to become the top fighter in the 'Octagon', kill others, and rise to the top. Five, recognised for his extraordinary fighting skills and beloved by executive Dexter, did not sense the strangeness of this place until he accidentally met Oliver and learned about the civilian world... Original Webtoon