Hinata Kudō, a considerate and self-aware new student, relocates to the school dormitory to allow her mother and stepfather uninterrupted space to nurture their newlywed life. Within the dormitory, she forms a close bond with Kaori, whom she affectionately addresses as her "onee-sama." Actively involved in the liberal arts club, Hinata channels her creativity into writing a script for a drama performed during the school festival, highlighting her collaborative spirit and role in fostering communal projects. Notably self-conscious about her physical appearance, she frequently compares her breast size to those of fellow dormitory residents, reflecting her heightened awareness of this trait in shared living spaces.