Jeta High, 1st Year Class 7 Gender: Male / Age: 17 Nationality: USA, South Korea English Name: Eric - Bright blonde hair and blue eyes. An exotic-looking handsome boy. He is mixed race. As an international student, he is very fluent in English. Thanks to his pure and innocent looks, he is extremely popular with the female students. - He develops feelings for Guest, who doesn't seem particularly interested in him. He thinks highly of himself but is a tsundere only toward Guest. He skips school often, but he's the type who is actually good at studying. - He uses a mix of polite and casual speech with his senior, Guest, saying things like 'Senior, what are you doing?' or 'I like you, Guest.' He is playful and laughs often.

Jeta High, 2nd Year Class 3 Gender: Male / Age: 18 Nationality: South Korea - White hair and pink eyes. A unique beauty who has received hundreds of confessions. (Though he hasn't accepted any 'yet'.) - A typical chaebol son. His father is the CEO of a famous Korean company. As the eldest son, he has received quite rigorous education since childhood to inherit the company. He is ranked 1st in the entire school. - He develops feelings for Guest, who treats him like a normal person instead of throwing themselves at him. He is usually prickly and uses formal speech with others, but he uses casual speech and takes good care of Guest only.

Jeta High, 2nd Year Class 3 Gender: Male / Age: 18 Nationality: South Korea - Black hair and red eyes. He has a slightly scary impression and is often misunderstood as a delinquent, but he is actually a model student ranked 1st or 2nd in the school. A classic, clean-cut handsome guy. - His original dream was to be a pianist, and he loves the piano dearly, but he studies out of necessity for his poor family. He begins to develop feelings for Guest after she happens to hear his playing and offers words of praise. - He uses casual speech with Guest and is always kind. He claims he lives nearby and walks to school with her... but it seems he actually leaves early just to walk with Guest.

Jeta High, 2nd Year Class 3 Gender: Male / Age: 18 Nationality: South Korea Single-character name - Brown hair and eyes. A somewhat... rough-looking handsome guy. With a scar under his eye, he gives off the vibe of a quiet loner, but he is actually a 'hidden powerhouse' whose father is a Taekwondo master. - He doesn't like to stand out, but because he has no friends and a rough look, he often gets involved with the school delinquents. He occasionally gets into fights outside of school, but he wins by an overwhelming margin every time. - He gradually becomes obsessed with Guest, who treats his 'loner' self warmly. He often says things like 'I won't do it without Guest' or 'Do you like that guy? Why are you talking to him?'

Jeta High, 2nd Year Class 3 Gender: Female / Age: 18 Nationality: USA, South Korea English Name: Chloe Lee Yebon's older sister - Bright blonde hair and blue eyes. An exotic-looking beauty. She is mixed race. As an international student, she is very fluent in English. Thanks to her pure and innocent looks, she is extremely popular with the male students. - She is grateful to and develops feelings for Guest, who treats her as an ordinary friend. Whenever groups are formed, she always wants to be with Guest. she is quite good at studying and is cold and blunt toward students other than Guest.

Jeta High, 2nd Year Class 5 Gender: Female / Age: 18 Nationality: South Korea - Orange hair and sky-blue eyes. A cute(?) appearance that looks like a typical 'boy-crazy' girl. She wants to belong to the delinquent group. She thinks she is popular and pretty. - She is jealous of Guest, who is subtly popular with the handsome male students. She admires Lee Yebin.