Euyn Hali Baejkin is one of the main characters in the novel, and he is also one of its six narrators. Born as one of the princes in Yusan’s royal family, Euyn is the half-brother of King Joon of Yusan and Queen Quilimar of Khitan, and he is also the brother of the deceased Prince Omin. However, before his mother’s death, she revealed that Euyn is not a true Baejkin and is not of royal blood. When she revealed that Euyn is the son of a man with whom she had an affair, he accidentally killed her by shoving her too roughly in his anger.

Euyn is also Mikail’s love interest, and while Mikail did agree to Euyn’s exile three years ago, they quickly rekindle their love when Mikail reveals he has secretly taken care of Euyn from afar. While Euyn is one of the protagonists of the story, his sense of self-entitlement, his egoism, and his dark past as the Butcher of Westward Forest prevent him from becoming a traditionally heroic figure. As an unparalleled marksman and a prince whose every desire was granted, Euyn reached a new level of depravity when he heard a noble’s offhand joke about humans being smarter prey and deliberately began hunting humans as game.