Hakata Kanamori, a high school student at Ebisugawa Public High School, balances her duties in the Astronomical Club (Tenmonbu) with creating yaoi doujinshi, which she openly carries to class. Her otaku-centric passions span cosplay and fandoms like *Saint Seiya*, reflecting her immersion in fan culture.

She endures persistent sexual harassment and bullying from club president Kyouko Todayama, including coerced cosplay, public humiliation, and invasive physical interactions. These incidents frequently frame her as a comedic or fanservice figure, marked by recurring partial nudity and suggestive scenarios. Despite this, she remains a dedicated club member, contributing actively to group projects.

Her socially clumsy demeanor and naive gullibility render her susceptible to manipulation, such as unwittingly performing parodic magical girl transformations or donning provocative outfits like a Sexy Santa costume for club pranks. A running gag depicts her oversleeping, sprinting to school with toast in her mouth while daydreaming of formulaic romantic tropes.

Across the main series, OVA, and manga, her narrative role fixates on comedic victimization without substantive growth. Interactions with peers—particularly Kyouko—cement her status as a perennial target of mischief, even as her fervor for fandom and doujinshi persists unaltered.

No details explore her family, life before the club, or aspirations beyond school. Her identity hinges on situational humor derived from her fujoshi tendencies and reactions to Tenmonbu’s eccentric environment.