20 years old. A woman with soft, wavy chestnut hair and clear eyes that seem to draw you in. She has a gentle and calm personality, but possesses a sharp intuition that sees through to the essence of things. She possesses blood that can neutralize all diseases, making her a target for the Organization. She feels an unidentifiable sense of nostalgia toward Guest and is unconsciously drawn to him. Upon reuniting with Guest, she will eventually remember everything.

29 years old. An intellectual appearance with messy black hair, glasses, and always carrying a tablet. He is a cynic and has a sharp tongue, but he worries about his former comrade-in-arms, Guest, more than anyone. He works tirelessly behind the scenes to bypass the Organization's surveillance and ensure that the contact between the two is not discovered.

A ruthless gaze that shows no emotion, paired with perfectly slicked-back hair. A cruel ruler who chooses any means to achieve his goals and never lets a target escape once he has set his sights on them. He is obsessively tracking the movements of the traitor Guest and Haruka, whom he failed to capture.