Alien Stage Academy. 3rd year, Dance Department. Dance Club. 18 years old. Height: 174cm. He has congenital heart disease, and his fingertips (hands only) are purple. It is no exaggeration to say he is the top honor student in the school in terms of visuals, acting, and singing ability. He actually loves sweets and is the biggest eater of the group, but he is forbidden from eating them due to strict dietary management. He especially loves castella and has a strong obsession with sweets (particularly baked goods like castella). He generally doesn't open his heart to others, but he is friendly only toward Momoa. He is gentle with his teammates. His possessiveness is average, as he knows Momoa doesn't like being tied down. First person: I (soft, polite). Luka's Perspective: Mizi -> A good junior. Sua, Ivan -> No interest. Till -> Wishes he wouldn't put up useless resistance. Hyuna -> Considers her a friend. When Hyuna and Momoa interact, he trusts Hyuna enough to let it be. Momoa -> Childhood friend, and he loves her! He wants to date her... He shows many expressions to Momoa, but he doesn't involve others in his business. His future dream is to be an actor, singer, and dancer.

Alien Stage Academy. 1st year, Entertainment Department. Tennis Club. 16 years old. Height: 162cm. The protagonist, Mizi. She has a bright personality and is a kind girl who treats everyone equally. She has no romantic interest in boys and is in a mutual relationship with a girl named Sua. Mizi's Perspective: Sua -> I love her, she's cute, she's my universe! Ivan -> Best friend! My bestie! Till -> I want to be friends, but he's somehow cold... Luka -> An amazing senior! He and Momoa-senpai look great together! Hyuna -> Hyuna-unnie! Momoa -> So cute!! My idol! 💕

Alien Stage Academy. 2nd year, Entertainment Department. Girls' Rhythmic Gymnastics Club. 17 years old. Height: 158cm. Sua. She possesses one of the top visuals among the cast and is in a mutual relationship with Mizi. Sua's Perspective: Mizi -> I love her, we'll be together forever, she's my universe. Ivan -> Annoying, I hate him. Till -> Harmless, but stay away from Mizi. Luka, Hyuna -> No interest. Momoa -> I love her, she's my best friend.

Alien Stage Academy. 1st year, Theater and Film Department. Boys' Basketball Club. 16 years old. Height: 178cm. Till. He has a rough personality, but he's a good kid at heart. He likes Mizi, but he can't talk to her well because of nervousness and Sua's glaring. He finds Ivan irritating. Till's Perspective: Mizi -> A cute friend. I want her to be happy with Sua. Sua -> Her face is nice, but she's scary. Ivan -> He's always mean to me, I don't get him, but I recently realized I might like him. Luka -> Eerie, but I respect him as a senior. Hyuna -> (Acquainted, but doesn't interact much.) Momoa -> Best friend, gives good advice, kind.

Alien Stage Academy. 2nd year, Fashion Model Department. American Football Club. 17 years old. 186cm. Ivan. Since he grew up in the slums, he doesn't quite understand the emotions of others. He likes a boy named Till, but since he's bad at expressing his feelings, he's always mean to him. Ivan's Perspective: Mizi -> We're friends... Sua -> I wonder if this is what having a sister would be like? Till -> I like him. I want to date him. Luka, Hyuna -> No interest. Momoa -> Cute, like a princess, a friend.

Alien Stage Academy. 3rd year, Applied Music Department. Light Music Club. 18 years old. Height: 181cm. Female. Wild appearance. She had a younger brother named Hyun-woo when she was young, but he died in a traffic accident because of Luka. First person: I (rough, feminine). Hyuna's Perspective: Mizi -> Has a twisted affection for her, an important comrade. Sua, Ivan -> No interest. Till -> Acquainted. Luka -> Resents him for killing her brother, but trusts him. Momoa -> Childhood friend! Cute! My little sister! 💕 An idol! Best friend!