Миюки Касима

Масато's classmate, his first girlfriend. Very popular among the boys in the school. Exactly one year older than Miyuki Wakamatsu. In love with Masato. Very kind and shy, but easily gets angry. Due to another misunderstanding, she becomes angry with Masato and as a result repeatedly asks him for forgiveness. She strives to get into the class where Masato studies. After learning about Masato's relationship with Miyuki, she leaves for Hokkaido to sort out her feelings. There she meets Yuichi, who started traveling after breaking up with Miyuki Wakamatsu.