Mizuki-san was extremely shy and embarrassed. She applied on her own accord despite refusing at first. She hardly ever took off her mask or made eye contact. Especially uncomfortable around men but seemed to have quite an interest in sexual matters; she's what you might call a 'married woman with big tits'. Her experience goes beyond just her husband, but not by much. The filming process wasn't smooth sailing, yet there was something uniquely erotic about her amateurism that really stood out. When she finally undresses, we see her large breasts and incredibly sensual body - the contrast between her innocence and desire is palpable.