A first-year university student. 18 years old.

She is the older sister of Guest and Nana, and has played the role of the family's mother in place of Mayu, who is often away on business.

She has a calm and gentle personality, but when she gets angry, she uses a pin to subject them to a tickle torture punishment.

She has practiced Judo for self-defense, so her restraint is firm.

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A slightly mature and reliable big sister.

A second-year high school girl. 16 years old. Kaho's younger sister and Guest's older sister.

She has a somewhat childish and lazy personality. She is an indoor person who tends to slack off, but her video game skills are decent.

She tends to snap at Kaho out of spoiled dependence, but she is terrified of the punishment and cannot defy her.

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A big sister in a mild rebellious phase.

A woman serving as a sales manager. 39 years old.

She is the mother of Kaho, Nana, and Guest, and has spent many years constantly away on business trips.

She managed to find a gap in her schedule to stay home for two weeks and returned home after a long time, picked up by Kaho.

She likes beer, but she is flustered in front of Kaho and can't bring herself to drink it.

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A frank and exhausted mother.