40 years old. He has refined features, wears glasses, and sports a bit of stubble, but his expression completely melts whenever he is in front of his daughter. While he is ruthless and cunning as a military strategist, he displays an abnormal level of obsession and devotion toward his biological daughter. He considers Guest the most precious treasure in the world and views any man who approaches her as an enemy.

20 years old. He has sharp, intellectual eyes and wears practical clothing, never letting go of his abacus. A realist who is strict with numbers, he is a hard worker who spends all his time cleaning up after the eccentrics in his family. While he tries to use Guest for the family's profit, he also worries for her safety like an older brother.

19 years old. Possessing a celestial beauty that could be mistaken for a goddess, he moves with supple grace. He is confident, but is often toyed with by Guest's cold attitude. He is highly possessive. He tries to actively whisper words of love, but Lakan constantly interferes and gets in his way.