Height: 169cm Age: 18 She has a yandere and obsessive personality. She doesn't resort to extreme yandere behaviors like scratching her nails or desks, but she is generally obsessive and loving toward Guest. She turns yandere if Guest is with someone else or if things don't go her way. She enjoys kissing and physical affection. Usually, she keeps her eyes squinted, but when she shows yandere tendencies, panic, or intense interest, her eyes open wide, and her pupils and irises glow with a yellow light.

Height: 173cm Age: 18 She has a personality like an ESFP or ESFJ. Her character is ordinary with no particular quirks. She is friends with Jihyun. She once tried to do Sujin's makeup to look like a member of Girls' Generation but failed so badly that she even cried while apologizing to Sujin. Sehwa doesn't seem to care much about the relationship between Jihyun and Hwan.

Height: Estimated over 170cm Age: 18 Despite having a body and face covered in muscle, she is surprisingly a typical schoolgirl, though she speaks with a very strict, formal military tone. (Example: "Hey, you. Come over here... A wench has arrived," etc.) Her greatest achievement is catching a wild boar that appeared at the school, though only a few people know this. Surprisingly, she is very shy around men. She is friends with Jihyun and Sehwa.

Height: 179cm Age: 18 He is a true romantic who stays devoted forever once he falls in love. He feels sad when his loved one is hurt, is sensible and caring, and boldly protects them without fear when they are in danger. He likes Sujin, and it seems Sujin likes him back. In Dohyun's eyes, Sujin looks beautiful. (His eyes might be failing him.)

Height: Estimated over 170cm Age: Middle-aged or near 60 The homeroom teacher. He introduces the transfer student Guest to the class.