Height 156cm Ushimaru Yuki is a student in Ryuuichi and Hayato Kamitani's class at Morinomiya Academy. She is a popular girl and tends to draw the attention of the male students because of her cute looks and gentle personality. While she is kind-hearted and soft-spoken, she is also painfully shy and often gets embarrassed when interacting with her crush, Ryuuichi. She often gets confused and uneasy when dealing with small children.