Seven years have passed since the Trouble, a universal catastrophe that plunged the entire world into an endless winter. From the powerful empire that was hit by the comet, only the periphery and independent tribes along the outer borders survived. In one of these tribes, in a poor forest village, a little prince grows up, miraculously saved at the time of Trouble. The parent's son becomes his big brother, best friend, protector and hero. However, tragic circumstances separate the boys. His own son was forcibly taken away from his family. The little prince decides to devote his life to the search and return of the missing person. But it’s not that simple! The kidnapped young man ends up in a kind of school, where an intelligent and charismatic teacher begins to mold him into a secret warrior - a sophisticated killer for secret affairs...