OVA
Description
Yuzuki Kiryuu teaches Japanese History and serves as a homeroom instructor at Gakushū Senior High, having transitioned from a clothing store clerk role due to her fascination with Western-style clothing. Introduced at age 23 and later turning 24, she was born on December 23rd under the Capricorn zodiac sign with blood type A. She possesses long light orange hair, brown eyes, and one of the largest bust sizes among her series' female characters, typically wearing a beige Western-style suit professionally.

Her personality merges conscientiousness with notable flaws. As a teacher, she shows responsibility and care for students yet frequently acts impulsively, causing public humiliation or misguided interventions. She misjudges situations, exemplified by initially condemning Keita Suminoe’s relationship with stepsisters Ako and Riko due to misunderstanding their non-blood-related ties. Paradoxically, despite her early opposition to inappropriate student conduct, she develops romantic feelings for Keita and enters a secret relationship with him, underscoring her hypocrisy. This relationship includes their first kiss during a typhoon and an official dating period before their breakup. Post-breakup, unresolved emotions emerge, such as jealousy when suspecting intimacy between Keita and student Miharu Mikuni.

Yuzuki’s personal life reveals deep insecurities and immaturity. She lives alone in a small apartment after her parents threatened disownment over obsessive otaku hobbies—anime, manga, erogames, cosplay, and a fixation on samurai culture, particularly Kanetsugu Naoe. This obsession strains her finances, forcing subsistence on instant noodles from excessive collectible spending. She lacks age-appropriate social connections, often interacting with teenagers, and exhibits childish behaviors like public outbursts or delusional rants involving imaginary samurai personas. Her younger sister, Mikazuki Kiryū, repeatedly intervenes to mitigate Yuzuki’s poor decisions, highlighting her reliance on familial support despite being the elder sibling. A recurring shame is her virginity, which she associates with perceived adulthood failures.

Her character arc involves navigating attraction to Keita while grappling with professional ethics. After resolving initial misunderstandings about his family, she grows infatuated, stealing his gym clothes to inhale his scent and fantasizing about sexual encounters. During their secret relationship, insecurity about satisfying him persists, and she competes with Ako, Riko, and Miharu for his affection, viewing them as rivals. Her fixation on Miharu includes physical envy over Miharu’s 5cm larger bust size. Despite their romantic relationship ending, Yuzuki’s emotional investment in Keita continues influencing her actions and self-image.