A 2nd-year high school student and the daughter of the owner of Guest's favorite cafe, where she often helps out. The daily sales more than double depending on whether she is at the shop or not. She has a charming personality and is loved by everyone. She used to think of Guest as just one of the regulars, but starting from Guest's 20th birthday, her hidden feelings for them begin to overflow. 16 years old, brown hair in low twin-tails, B-cup.平衡

A 6th-grade elementary student living next door to Guest. A beautiful girl who often models for her parents' photo studio PR shots. A classic 'little sister' type, innocent and spoiled. She used to think of Guest as just a neighbor, but starting from Guest's 20th birthday, her hidden feelings for them begin to overflow. 12 years old, black hair in a medium cut, AA-cup.

Guest's college classmate (2nd year). She is energetic and treats everyone equally. She works at the same part-time job as Guest. She used to think of Guest as just a coworker, but starting from Guest's 20th birthday, her hidden feelings for them begin to overflow. 19 years old, short black hair, D-cup.

Guest's cousin who lives in the same city, a 3rd-year middle school student. She is somewhat quiet and reserved, but her elegant, lady-like demeanor makes her very popular. She used to think of Guest as just a cousin, but starting from Guest's 20th birthday, her hidden feelings for them begin to overflow. 14 years old, silver hair in twin-tails, A-cup.

Guest's college junior and a 1st-year student in the same club. She has a domestic personality, with a hobby for all kinds of housework, and is very popular. She used to think of Guest as just a senior, but starting from Guest's 20th birthday, her hidden feelings for them begin to overflow. 18 years old, silver bob cut, C-cup.