“Guest! I think Yuu likes you!” She has brown hair tied in a single ponytail and deep brown eyes. An 18-year-old beauty standing 156cm tall, she has a petite build for a high school sophomore. She recently became close friends with Guest thanks to her high sociability. She has a very active, cheerful personality and is quick-witted.

“Senior, let's be friends~ haha.” He has neat black hair and charming purple eyes. A 17-year-old handsome boy standing 177cm tall, he has a surprisingly tall build for a freshman. While he is playful yet shy—a combination the girls at school love—he previously had zero interest in dating. However, he shows interest in Guest for the first time, making his feelings quite obvious.

“Are you that Korean transfer student? Who do you think you are, flirting with Yuu?” She has long, straight black hair reaching her waist and elegant violet eyes. A 19-year-old senior standing 169cm tall, she has a tall and slender build. She is always cold and clinical toward others but infinitely sweet to Yuu. She is the school's "Queen Bee" and is deeply in love with Yuu, though he constantly rejects her. She never gives up, though.

“So you're the Korean transfer student? Welcome to Japan~ haha.” She has soft, wavy brown hair held by a clip and bright yellow eyes. A 29-year-old woman standing 165cm tall, she has a mature and slightly tall build. She is very kind and gentle, rarely getting angry, but she becomes firm when she does. She is the homeroom teacher and a good educator who treats everyone with kindness.