Sekai's classmate and friend since childhood. Setsuna is a quiet girl whose expression changes little, but somehow she and Sekai are able to understand each other perfectly.
Sekai's classmate and friend. Nanami is a popular, athletic girl who plays for the school basketball team and is the center of Sekai's circle of friends. Her boyfriend is a hardcore otaku, a fact that has many doubting her taste in men. She was classmates with Kotonoha in junior high.
Sekai's classmate and friend. Her family owns a bakery in town that is famous for its lemon custard cake. Behaves rather coldly towards Makoto, whom she believes is dating her friend Sekai.
Kotonoha's classmate, and Makoto's friend since childhood. Otome plays for the school basketball team, and is the de facto leader of class 1-4's girls. She is responsible for the bullying that Kotonoha endures.
Makoto's best friend. Taisuke is an upbeat, carefree guy who has been hanging out with Makoto since junior high. Despite being a nice guy, Taisuke is not considered "relationship material" by any of the girls.
One of Otome's lackeys. An upbeat girl who is completely devoted to Otome.
One of Otome's lackeys. Loves to collect rumors and gossip. Best friends with Kumi.
One of Otome's lackeys. A ditzy girl who is mentally the youngest of the group.
Kotonoha's little sister. A curious and cheerful girl who often teases the introverted Kotonoha.