Sumire Uemoto (上本スミレ Uemoto Sumire) is the daughter of a ramen shop owner.
Sumire Uemoto ('Uemoto Sumire '上本スミレ') loves to eat ramen and constantly visits the different ramen shops in the city for research in order to improve her own recipe. Before she met Keima Katsuragi, Sumire was always arguing with her father over how he manages the family's small Chinese restaurant called “Uemoto-ya” (Now known as "Sumire-ya"). Her mother used to work at this restaurant, but had ran away some years ago for unexplained reasons.