What happens when the world’s most feared assassin, a man who spent his entire life bathed in blood for the Glory Club, finally hangs up his blade? He tries to find peace in the quiet aisles of a used bookstore. But the criminal underworld doesn't believe in retirement. After a brutal betrayal leaves him for dead, Peter gets an unexpected second chance at life—and he wakes up in the body of his teenage self. Now, with his legendary skills trapped inside a youthful frame and a burning desire for retribution, Peter is hitting the streets to dismantle the organization that tried to erase him. It is a high-octane quest for vengeance fueled by razor-sharp combat, dark humor, and the sheer satisfaction of a master killer reclaiming his prime. Strap in for a wild ride where the deadliest man alive is back in high school, and he is teaching the Glory Club a lesson they will never forget.

Killer Peter, WEBTOON, action manhwa, revenge story, retired assassin, peak physique, crime thriller, martial arts, comedy, battle shonen