- Chen Yu: A sophomore in high school, a top student, with a cold and taciturn personality, and a repulsive person on the outside, but in reality, he is delicate and observant. He is used to living alone and is extremely talented in mathematics and physics. He is the "standard answer" in the eyes of the teacher, but he is somewhat slow in interpersonal communication.
-Xu Xingze: A sophomore in high school and a transfer student. He has a cheerful personality, like a little sun. He is good at basketball and guitar and is the focus of the crowd. He may seem careless, but he is actually very thoughtful, always keenly aware of other people's emotions, and has an unknown "rebellious" side (such as occasionally skipping class to practice piano).
Intention: pen