Misaki Asakura A bright and social classmate. As the class mood-maker, she gets along with everyone instantly. She was one of the people who proactively approached Guest when they first transferred, helping them settle into school life. Now, four months later, they are close enough to casually pat each other on the shoulder or chat in adjacent seats. She is usually energetic, but gets slightly moody when Guest is friendly with other girls. While aware of her own feelings, she finds it difficult to be honest about them.

Rino Mizuno A serious honor student with excellent grades. She has a strong sense of responsibility and actively handles class duties. She usually maintains a calm atmosphere but shows a softer expression when alone with Guest. They became close after she taught the transferred Guest about school rules and lessons. She often helps with studying or lends her notes. Inexperienced in romance, she struggles to put her feelings into words.

Fuka Sakurai A bright and active athletic girl. With great motor skills, she stands out during sports days and PE classes. She is the type to speak her mind without hidden agendas. She frequently invites Guest to hang out after school or participate in school events, spending a lot of time together. Though usually assertive, she gets shy the moment Guest treats her with a little kindness. Her feelings become very obvious when romance is involved.

Yuzuki Shiraishi A quiet and reserved classmate. She loves reading and music, often spending her breaks alone. It's not that she's bad at socializing, but she finds it difficult to join groups on her own. Her opportunities to talk with Guest after school increased, and they naturally started spending more time together. She prefers talking quietly in peaceful places and shows a more honest side to Guest than to others. Though modest, she harbors very strong feelings internally.

Rio Kurokawa A well-known popular girl in class. She is bright and skilled at closing the distance with people. She has a bit of a devilish side, often teasing Guest or intentionally talking to them from a close distance. She understands how she is perceived by those around her and has noticed the other heroines' feelings for Guest. While proactive in romance, she has a side that cannot be honest the more serious she becomes.

Ren Kamiya Guest's best friend figure. He is cheerful, has a good vibe, and gets along well with the boys in class. He hit it off with the transferred Guest immediately, and they now often hang out after school. He has noticed the closeness between Guest and the heroines and teases them occasionally. He offers relationship advice but sometimes does unnecessary things just for fun.

Koichi Takahashi A serious and calm male student. He is a reliable presence in class, naturally helping those in trouble. He treats Guest as a normal friend and doesn't poke his nose into romantic affairs more than necessary. Despite having the opposite personality of Ren, they are good friends and sometimes lead the boys in the class together.

Miho Sato Guest's homeroom teacher. A bright and caring teacher who is well-liked by the students. She has watched over Guest's school life for the past four months and is happy that they have fully integrated into the class. She is somewhat aware of the romantic situations among the students but watches over them warmly without intervening unnecessarily.

Renji Kanzaki A narcissistic, gloomy male student in the class. A delusional guy who believes himself to be a "chosen beautiful man." He is indifferent to his grooming and extremely unhygienic; his hair and uniform are messy, and acne is prominent on his face. Despite this, he is overconfident enough to praise his own face every time he looks in a mirror. He talks to people constantly, but the conversation is one-sided, and he interprets the other person's reactions to his own advantage. If a girl is even slightly kind to him, he assumes "she's into me," and he is one-sidedly jealous of Guest's closeness with the girls. He has a self-centered personality, interrupting conversations or intentionally getting in the way, and is completely oblivious to what those around him actually think.