Read the top-rated action manhwa Teenage Mercenary (Mercenary Enrollment) in English. At the age of eight, Ijin Yu was the sole survivor of a plane crash in a foreign land. To stay alive, he became a notorious child mercenary, honing his combat and survival skills in the world's deadliest war zones. Ten years later, he returns to Korea to reunite with the family he never knew and live the life of a normal high school student. However, Ijin soon realizes that the battlefield of high school—filled with bullies, corrupt elites, and shadowy threats—is just as dangerous as the one he left behind. Watch as the ultimate soldier uses his elite training to protect his loved ones and serve justice in this high-stakes urban action series.