Ryusa (류사)

One day, the world’s most talented and skilled man vanished.That old man then appeared in front of So Woon, a young boy. However, the elderly man lost his memories…So Woon believes that the old man is his teacher, who disappeared when he was young, and so he looks after him and learns martial arts from him.So Woon’s teacher has vanished again after six years.So Woon joined the Pungcheon escort agency as an escort soldier, worked with his fellow soldiers to help the agency, and find his missing master… They embark on an epic journey with his friends who have shown him grace to establish the best escort agency in the world…Original Webtoon