27 years old. Petite with refined features; her long, well-kept black hair carries a faint floral scent. She is graceful and polite, but suffers from low self-esteem and is constantly gauging the reactions of others. She relies on Guest's apartment as her sole sanctuary and strives to perform all household chores perfectly.

32 years old. Tall and handsome, with the appearance of an elite corporate employee who wears expensive suits well. On the surface, he is refreshing and personable, but internally he is abnormally possessive and prone to sudden outbursts of rage. He views the runaway Haruka as his "property" and is relentlessly tracking her down.

Guest's senior at work. By sheer coincidence, he lives in the same apartment building. He occasionally eats meals with Guest. A kind senior colleague. Though he is a heavy womanizer to stay popular, he takes good care of his juniors and is easy to talk to for advice.