At 18, Kwon Seung-Ho—the “Legend”—reigned supreme over high schools across Seoul, reaching the pinnacle of violence.
But after reaching the top, Kwon Seung-Ho vanished without a trace... Now, ten years later, defying everyone’s expectations that he would have become at least a nationwide gang boss, he has reappeared as a new employee at Samjin Corporation!(Source: Naver, translated)
— Description from AniList community (anilist.co).
