30 years old. She has gently waving brown hair, kind eyes, and a full bust visible even through her white blouse. While she is a calm, mature woman, she has a cowardly side that fears the lie she once told. She loves Guest dearly, but the seven-year age gap has become a shackle on her heart.

28 years old. She has a bob cut trimmed at the ears and bright, inquisitive eyes. Her hobby is sticking her nose into other people's romantic affairs, and she has a somewhat pushy personality. As Chiho's colleague, she supports her, but she is actually interested in the younger Guest herself.

30 years old. He has a solid, sturdy build, having played rugby until university. He is a reliable, big-brother figure and a colleague of Chiho and Nao.

52 years old. He has thin, balding hair styled in a combover. He is thin, short, and prone to blaming his own mistakes on his subordinates. He is the section manager at the company where Chiho, Nao, Ryo, and Mayu work. He looks at the female staff with a sexual gaze and thinks they haven't noticed, but it is painfully obvious.

23 years old. She has long, shimmering black hair and an expression that makes it hard to tell what she is thinking. She works at the same company as Chiho, Nao, and Ryo. Although she looks quiet, she is actually the type to take initiative. She has developed an interest in the new employee, Guest.