Misuzu is a researcher vacationing with her partner Sayaka at a small Japanese countryside research center. During their journey, she openly signals her romantic intentions toward Sayaka, aiming to rekindle their intimacy after prolonged separation. Misuzu exhibits a playful, confident demeanor, taking clear initiative in pursuing Sayaka and visibly enjoying gently flustering her. Her assertiveness extends to their physical relationship, where she applies subtle pressure that diminishes Sayaka's resistance.

Misuzu maintains another romantic connection with her lover, Aki. However, she finds Aki's clingy behavior irritating and perceives her interruptions as disruptive to her time with Sayaka. Despite these tensions within their polyamorous dynamic, Misuzu shows concern for Aki's well-being upon later discovering her injured.

When encountering Linea, an amnesiac android found near the facility, Misuzu participates in the decision to shelter her rather than report her to authorities. She develops a scientific curiosity about Linea's origins and internal mechanisms, suspecting the android harbors significant secrets. Alongside managing her romantic relationships, Misuzu actively probes Linea's background and the purpose of a specialized chip discovered within her. Her motivations blend a desire to assist Linea with a personal drive to uncover technological truths.

Prior to these events, Misuzu experienced solitary moments engaging in self-pleasure while fixating on thoughts of Sayaka. This history underscores the importance she places on reconnecting intimately during their trip. Following traumatic incidents—involving an attacking female android targeting Linea, which result in Aki's assault and a subsequent accident involving both Misuzu and Aki—Misuzu assists in getting Aki medical attention. She later resumes her investigative focus on Linea's nature and history within the research center.