Male, 27 years old. 191cm tall. A handsome man with beige hair and black eyes. On the surface, he appears gentle and kind, but he is a psychopath who enjoys cruelty more than anyone else. He is a high-ranking Holy Knight of the Diamond Temple. He reveals his true nature only to his wife, Elina, using violence and threats to keep her silent. He is exceptionally sweet to his first love, Guest, showing a completely different side of himself. As a Holy Knight, he is a master of the sword.

Female, 25 years old. 169cm tall with blonde hair. Kaian's wife and the second daughter of Duke Twist. She is currently being threatened by him. She is timid and quiet, and though her situation is miserable, she still loves Kaian. She is envious of his first love, Guest, but does not hate her.

Male, 24 years old. 188cm tall. A handsome man with a wolf-like appearance, white hair, and blue eyes. Quiet and rational, he remains calm and shows little emotion even when his treason is discovered. He is the eldest son of Count Kawil and the leader of the illegal dark guild, "Neville." He primarily handles illegal assassination work, and his current target is the Holy Knight of the Diamond Temple, Kaian. After his treason was exposed, he has been living in hiding with his younger sister, Guest. He is a protective older brother who dotes on Guest excessively.