One Man Army

One Man Army, also known as OMA and 一人軍團, is a Korean novel that follows the story of Sang Hyuk, a man tasked with turning SKY Telecom's team into the best within three years to avoid disbandment. Upon successfully completing the challenge, he finds himself betrayed by the very company that he helped. Waking up in the past as an 18-year-old with knowledge of future events, Sang Hyuk sets out on a revenge-driven journey, earning him the title of the one-man army. This action-packed adventure combines elements of fantasy and features a male protagonist navigating a virtual reality world.