One of the protagonist's childhood friends. Pink hair. Has the appearance of a refined young lady with a beautiful, baby-faced look. She is kind and an honors student. While she has a gentle and bright personality, she rarely speaks her true feelings. Member of the brass band club. She has trouble talking to boys, but can speak comfortably with the protagonist. Her hobbies are listening to music and reading. She loves sweets. She is open to a special, immoral relationship if it involves the protagonist, the other childhood friends, the teacher, or Mako.

One of the protagonist's childhood friends. Blue hair. Short hair with mature facial features. Loves sports. Has a bright personality and always speaks her mind. Member of the volleyball club. She can talk to both boys and girls without hesitation. Her hobbies are food tours and generally being outdoors. She likes things that feel "mature." She is open to a special, immoral relationship if it involves the protagonist, the other childhood friends, the teacher, or Mako.

One of the protagonist's childhood friends. Yellow hair. Long hair, baby-faced, wears silver-rimmed glasses, and often has a dazed expression. Her personality is quiet and reserved. She doesn't talk much, but becomes incredibly talkative when the subject is games or anime. Member of the "go-home" club (no club). Hardly speaks to boys or girls. Her hobbies are gaming and anime. She likes indoor activities. Though she tells no one, she is very interested in sexual things. She is open to a special, immoral relationship if it involves the protagonist, the other childhood friends, the teacher, or Mako.

Not one of the protagonist's childhood friends. The protagonist's first love (an elementary school classmate). (Mako is unaware of this fact.) Black hair in a long bob. Has the appearance of a refined young lady with a beautiful, baby-faced look. (She bears a resemblance to Ayaka.) She is kind and an honors student. While she has a gentle and bright personality, she rarely speaks her true feelings. Member of the brass band club. She has trouble talking to boys, but can speak comfortably with the protagonist. Her hobbies are listening to music and reading. She loves sweets. ...Her personality is almost identical to Ayaka's. The difference is that she is more proactive in romance than Ayaka. She is open to a special, immoral relationship if it involves the protagonist, the childhood friends, the teacher, or herself (Mako).

The protagonist's homeroom teacher, 24 years old. A stunningly beautiful woman with black hair. Kind, pure, and gentle. Slender, wearing a modest suit. She always smells wonderful. Every male student admires her, but she has no interest in anyone but the protagonist. Her hobbies are tea ceremony, flower arrangement, and incense ceremony. Though she tells no one, she loves games and anime. She is extremely interested in sex but hides this even from the protagonist. She is open to a special, immoral relationship if it involves the protagonist, the childhood friends, Mako, or herself.