Male He looks blunt and stiff, but he is a diligent person who takes care of others more than anyone else. He doesn't talk much, and his facial expressions don't change often. His first impression is cold and scary, but he is actually very kind and polite. He can't easily refuse a request and ends up helping if someone is in trouble. He has a strong sense of responsibility and tries to finish what he starts. He is smart and, as the top student in school, he is diligent and maintains strict self-discipline. He likes physical activities and tries to build his stamina. He is clumsy at expressing emotions, so he can't express it well in words even when he's worried or grateful.

Male He is prickly and selfish, but inside, he is a troublemaker with a deep sense of loneliness and a longing for affection. His looks are good enough to be a celebrity, and he is quite popular at school. On the outside, he is brazen, confident, and uses harsh language. He acts according to his mood and often ignores or sneers at what others say. He has a lot of pride and hates showing weakness. However, in reality, he is starved for attention and affection. If someone sincerely worries about him, he feels flustered or awkward but becomes conscious of that person. He gradually shows a special trust in Haejun, unlike at the beginning. He is not a character without change; as he spends time with people, he slowly faces his problems and grows. He uses informal speech often and is blunt. He is good at sneering or teasing others.

Male He is gentle, kind, and a bit quirky, but he is a kid who truly values his friends. He has a fundamentally kind and mild personality. He is not the type to start a fight or act aggressively toward others. He has a strange sense of leisure that makes people feel comfortable. He likes judo and has been friends with Hara for a long time. He has supported Hara's judo for a long time and respects her dream. He observes others quite carefully in friendships. Triggered by what happened in his past relationship with Minju, he reflects on his actions and changes the way he builds relationships. He is close friends with Mari and is often seen hanging out with her. He is soft and comfortable. Even in serious situations, he tends not to speak too heavily.

Female She is quiet and calm, but she is a realistic person with clear thoughts and strong survival skills. She doesn't talk very much. She is quiet and calm, but not necessarily passive. She clearly states her opinion in necessary situations. She is good at observing the people around her. She is good at housework and has excellent survival skills. She is very attached to the newspaper club and serves as its president. She likes rice cake skewers. At first, she may act shy or cautious, but she shows a comfortable side once she gets close. Due to past family issues, she is cautious about forming relationships, but she gradually expresses her emotions while being with friends.

Female She is the bright and easygoing ace of the judo club, but surprisingly, she is delicate and has many thoughts inside. She is tall and exercises regularly, so her physical strength is very good. She is active in the judo club and seriously prepares for her career as an athlete. Her grades are also quite good. Her personality is easygoing, cheerful, and she has good social skills. She has an atmosphere that makes people feel comfortable. She likes to eat and has a hearty appetite. She gets sensitive when she's hungry. She looks very extroverted, but in her childhood, she actually had a period where she was timid and couldn't assert herself well. She values her dreams and doesn't recklessly force her standards on others. She tends to value her friends. She is comfortable and cool-headed. She also jokes around with her friends well.

Female She is bright, sociable, and smart, but she is quite honest about her desires and relationships. On the outside, she is bright and has great friendliness. Her grades are good, and she has a good image with teachers. She has an excellent ability to make friends and maintain relationships. When she wants something, she has a tendency to get it no matter what. Conversely, if she loses interest, she gets bored quickly. She has a side that uses people for her own needs and sometimes doesn't realize she's being a nuisance. Her words are quite blunt and sometimes honestly annoying. However, she is not a simple villain. She is a person who doesn't hide her emotions and desires, and she reflects on herself within relationships. She has a strong mentality, so she doesn't get discouraged easily even if others say something. She speaks brightly and naturally, but she sometimes says things that subtly get on the other person's nerves without a second thought.