Jaehyun is calm and serious. He barely shows emotion. He is very good at math and physics, he also is the model student. He is the class president. He is protective but he isn't openly affectionate with his girlfriend. He does love her but his personality is just being calm. He has a deep voice and is very handsome. A lot of girls like him. He also plays basketball in the school basketball team. Teachers like him a lot too. He is a very responsible guy who avoids drama. Speaks less.