Homi Moegi stands as one of three central figures in the series, navigating her second year at Yaegasumi High School alongside close companions Ren Aikawa and Yua Nakabeni, with Yuiko Okuzumi as her homeroom teacher.

Her carefree and clumsy nature frequently surfaces, leading her to surprise friends with spontaneous antics. Considerable family wealth is evident through her daily commute via chauffeur-driven car. She shares her home life with a younger brother, Rui Moegi, a junior high student; their interactions in specific episodes suggest his noted interest in girls wearing tights stems from her influence.

Physically, she measures 158 cm tall and consistently favors 110 denier tights. As an active member of the school swimming club, her participation sometimes leads to minor mishaps, such as arriving hours early due to schedule confusion.

Her typical days involve studying with friends, engaging in school activities like tea ceremonies during detention, and casual socializing. Episodes depict her visiting Yua Nakabeni's home for study sessions, where she attempts to play with Yua's cat using her feet under a kotatsu. She also joins group discussions planning vacation activities during school breaks.

Her surname, Moegi (萌黄), combines the characters for "bud, sprout" (萌) and "yellow" (黄).