After ten years of surviving the most brutal war zones on the planet as a legendary child mercenary, Yu Ijin is finally back in South Korea with one simple goal: to live a normal life with the family he thought he had lost forever. He spent his youth as a lethal shadow in a foreign land, trading his childhood for cold survival tactics and a reputation that made even seasoned veterans tremble. Now, he has swapped his tactical gear for a high school uniform, but he quickly discovers that the classroom is just another kind of battlefield. While Ijin desperately wants to protect the peaceful days he has with his grandfather and sister, the cruel reality of school bullies and ghosts from his mercenary past keep dragging him back into the fray. He is not just a student trying to pass his classes; he is a predator forced to navigate a world of petty social hierarchies and corporate power plays. Ijin will do whatever it takes to ensure his family never cries again, even if it means unleashing the elite soldier he worked so hard to leave behind. He survived the war, but now he has to survive the people who think they can break him.

mercenary enrollment, teenage mercenary, action manhwa, overpowered mc, school life, martial arts, military, revenge, family drama, webtoon