Mercenary Enrollment (Korean: 입학용병, RR: Iphak-yongbyeong) is a blockbuster action webtoon written by YC and illustrated by Rakhyun. It is one of the most popular titles on the Naver Webtoon platform, celebrated for its high-octane combat, "protective older brother" tropes, and a protagonist who is as disciplined as he is lethal.

The story follows Ijin Yu, the sole survivor of a plane crash in a foreign land when he was just a child. To survive, he became a child mercenary, rising to the rank of a legendary elite soldier over ten years. After being found by the South Korean military, he returns to his homeland to live a "normal" life with his grandfather and younger sister, Dayun. However, Ijin quickly realizes that high school has its own kind of battlefield, and he must use his specialized lethal skills to protect his family from bullies, gangs, and shadowy figures from his past.

Alternative Names and Titles

입학용병 / Iphak-yongbyeong / Teenage Mercenary / High School Mercenary