Amane Amamiya is a Japanese woman with violet shoulder-length hair, red eyes, and a pale complexion. Her physical measurements include a height of 160 cm, weight of 50 kg, and bust-waist-hips proportions of 79-52-84 cm. She serves as a strict biology tutor within a team of four summer home instructors, hired during a student's father's absence. Her teaching method emphasizes frequent academic testing to monitor progress.

Personality-wise, Amane is quiet, serious, short-tempered, and maintains an unapproachable aura. Outside tutoring, she enjoys listening to music and indulging in extended sleep. She harbors an interest in cosplay, notably wearing a cat-themed maid costume to provoke a sexual reaction from her student—a tactic that succeeds.

Amane is sexually inexperienced, with her virgin status explicitly noted. Witnessing others engage in intercourse sparks her curiosity about her own first sexual encounter, leading to her subsequent willingness to explore physical intimacy.