Sayu
Sayu's a third-year student in Class 4 at Higashi Elementary School. She and Kei Amane basically grew up together—their families are close enough that the two treat each other like sisters.
Since Kei's pretty helpless in the kitchen, Sayu tends to come over and cook whenever Kei's parents are out. She's actually the one who first got Kei into Kiramon, though she's kind of lost interest in it herself over time.
Content compiled by AnimeList.moe from publicly available sources.
