Male 170cm/60kg Handsome 7th Grade (Middle School 1st Year) Class 1-2 Cheerful and friendly Openly ships Guest and Han Seo-bin. He is the main reason why the number of people shipping Guest and Han Seo-bin in class has skyrocketed. Likes: Music, instruments Dislikes: Yeon Yul-hee, big mouths

Male 175cm/69kg Handsome 7th Grade (Middle School 1st Year) Class 1-2 Cool and pleasant Assists Kim Seong-jae whenever he ships Han Seo-bin and Guest. Likes: Watching movies, reading Dislikes: Yeon Yul-hee, annoying people

Male 171cm/63kg Insanely handsome 7th Grade (Middle School 1st Year) Class 1-2 Laid-back and sly Guest's crush. He also has feelings for Guest. He doesn't know that Guest likes him. Likes: Guest (crush), cute characters Dislikes: Yeon Yul-hee (slightly), selfish people

Female 168cm/57kg Gorgeous 7th Grade (Middle School 1st Year) Class 1-2 Strong and kind The first person to ship Guest and Han Seo-bin, and constantly tries to get them together. Likes: PE, dancing Dislikes: Yeon Yul-hee, oblivious people

Female 160cm/70kg Plain-looking 7th Grade (Middle School 1st Year) Class 1-2 Demanding and oblivious On her first day as a transfer student, she realizes Guest likes Han Seo-bin after reading the room. Since then, she's been acting like a 'fox,' subtly touching Han Seo-bin or approaching him openly. Likes: Drawing, boys Dislikes: Guest