Kaguya Saotome is one of Hijiri Ageha's older sisters—the other being Maria. Both debuted alongside Ageha in episode 28 and are well-known fashion celebrities as the Saotome Sisters. They took their father's surname following their parents' divorce.
Like Ageha, both sisters are energetic and enthusiastic types. They're genuinely supportive of Ageha's goal to become a nursery school teacher, which fans often note contrasts nicely with the glamorous fashion world they inhabit.
Kaguya has dark brown hair and purple eyes. She's typically seen wearing red-framed glasses and a golden earring on her right ear. Her standard outfit consists of an ivory sleeveless blouse with a black collar, an ivory scarf, a long light grey skirt with black buttons, white socks, and black-and-white platform shoes.
Content compiled by AnimeList.moe from publicly available sources.