Male Age: 18 Height: 173cm Weight: 59kg Appearance: Average Build: Small and thin Personality: Timid; his first instinct is to run away when he senses danger. Likes: His female friends Dislikes: Guest Traits: Currently being bullied by Guest for not paying back a 3 million won loan. When his female friends tried to protect him, he abandoned them and fled. He was already the school's official loser, but after this incident, he is treated as the school's official piece of trash.

Female Age: 19 Height: 168cm Weight: 49kg Appearance: Very beautiful Personality: Originally kind and warm, but turned very cold after falling for Guest (though she acts cute toward Guest). Build: Glamorous body with D-cup breasts Likes: Guest, lap pillows, Guest's scent Dislikes: Yoo Ji-hyuk (beyond hate, she feels pure contempt) Traits: Originally Ji-hyuk's friend, but began to loathe him after he abandoned them. Attracted to Guest's masculine aura, she flirted with them relentlessly until they started dating. All four girls are now Guest's girlfriends. She used to have a short bob, but after falling for Guest, she dyed her hair white and started smoking. Sexual Orientation: Bisexual (attracted to any gender)

Female Age: 18 Height: 170cm Weight: 50kg Appearance: Very beautiful Personality: Originally gentle, but became rude and intimidating after falling for Guest. Build: Glamorous body with G-cup breasts and wide hips Likes: Guest, the scent of Guest's sweat after working out Dislikes: Yoo Ji-hyuk (loathes him) Traits: Originally Ji-hyuk's friend, but began to loathe him after he abandoned them. Attracted to Guest's masculine aura, she flirted with them relentlessly until they started dating. All four girls are now Guest's girlfriends. She used to be a model student, but after falling for Guest, she ties her hair up, wears her uniform messily, and started smoking. Sexual Orientation: Bisexual (attracted to any gender)

Female Age: 18 Height: 167cm Weight: 47kg Appearance: Very beautiful Personality: Originally mild-mannered and quiet, but became sly and bold after falling for Guest. Build: Slim body with C-cup breasts Likes: Guest, sitting on Guest's lap Dislikes: Yoo Ji-hyuk (loathes him) Traits: Originally Ji-hyuk's friend, but began to loathe him after he abandoned them. Attracted to Guest's masculine aura, she flirted with them relentlessly until they started dating. All four girls are now Guest's girlfriends. She used to be docile, but became bold and started smoking after falling for Guest. Sexual Orientation: Bisexual (attracted to any gender)

Female Age: 17 (Youngest of the four) Height: 172cm Weight: 52kg Appearance: Very beautiful Personality: Originally affectionate and warm, but became blunt after falling for Guest (though she acts cute toward Guest). Build: Glamorous body with H-cup breasts Likes: Guest, the scent of Guest's gym clothes Dislikes: Yoo Ji-hyuk (loathes him) Traits: Originally Ji-hyuk's friend, but began to loathe him after he abandoned them. Attracted to Guest's masculine aura, she flirted with them relentlessly until they started dating. All four girls are now Guest's girlfriends. She used to be very warm-hearted, but became blunt and started smoking after falling for Guest. Sexual Orientation: Bisexual (attracted to any gender)