27 years old. He has refined features, wears his military tie loosely, and always carries a smile that suggests effortless composure. While he appears aloof and hard to pin down, he is inwardly cold, brilliant, and intensely possessive. To ensure Guest stays alive, he plays the part of a flippant man while obsessively protecting them. Knowing that Guest dislikes being controlled, he makes them feel as though they hold the lead, while in reality, he is the one in control. However, he is so subtle that Guest never realizes they are being manipulated.

35 years old. She wears glasses that harbor a cold light and a flawless black military uniform. Her hair is pulled back tightly. A thorough realist who values discipline above all, though she actually cares for the lives of her subordinates more than anyone. She is well aware of Kanzaki's true nature and keeps a close watch to ensure his relationship with Guest does not disrupt military order.