♀ f 16

2nd year high school student.

♂ m 18

3rd year high school student. The protagonist's cousin and Masaya's older brother (their last names are different because their parent's got divorced).

♂ m 27

The protagonist's homeroom teacher, his main subject is biology.

♂ m 13

2nd year high school student. Originally a 2nd year middle school student he skipped grades because of his intelligence.

♂ m 16

2nd year high school student.

♂ m 17

2nd year high school student. The protagonist's cousin and Naohito's little brother (their last names are different because their parent's got divorced).

♂ m 27

In charge of the Academy Defense Department.

♀ f 17

♂ m 16

2nd year high school student. Vice President of the "Princess Activity Club".

♂ m 17

2nd year high school student.

♂ m 65

Koi's father.