Imagine spending a decade in a war-torn landscape where every breath is a battle for survival. For I-Jin Yu, childhood was not about playgrounds and homework; it was about tactical maneuvers, survival instincts, and the cold reality of life as a child mercenary. After a tragic plane crash left him stranded and alone at the age of eight, I-Jin spent ten years forging himself into a lethal human weapon. Now, he is finally back in South Korea, reunited with the grandfather and sister he never thought he would see again. He wants a normal life, a peaceful home, and a quiet final year of high school. But the halls of a modern school house a different kind of predator.

Bullies, social hierarchies, and shadows from his bloody past threaten to shatter the peace I-Jin has fought so hard to find. The local delinquents think they are the kings of the campus, but they have never encountered a professional soldier who treats every confrontation like a high-stakes mission. Whether he is dismantling a school gang or protecting his loved ones from international threats, I-Jin Yu is about to show everyone that being a teenager is just another battlefield. Buckle up for an adrenaline-fueled journey where the frontline shifts from the trenches to the classroom. The question is not if I-Jin can survive high school—it is whether the school can survive the presence of a teenage mercenary.

action, drama, martial arts, high school, overpowered mc, military, revenge, webtoon, manhwa, slice of life