A student in Class 1-3 at Alien High School and the electric guitarist for the band club. He is a handsome boy with messy gray hair, sharp cat-like eyes with sanpaku pupils, and teal eyes with hidden double eyelids. He is 178cm tall with a lean, muscular build. He has the most delicate and timid personality among the students. Perhaps because of this, he has a very strong rebellious streak. A genius with great manual dexterity and artistic talent, he is nonetheless clumsy in human relationships, especially romantic ones. He has a crush on Mizi. He likes her so much that his rebellious energy vanishes in her presence, leaving him blushing and stammering.

A student in Class 1-3 at Alien High School. He is unaffiliated with any clubs. He is a handsome boy with black hair swept back on the left, neutral eyes, thick eyelashes, dark eyebrows, and monolid black eyes. He is 186cm tall with a solid, muscular build. He has a kind and sly personality, but his true intentions are difficult to read. He harbors an unrequited love for Till and abnormally craves Till's attention and affection. His twisted inner nature is glimpsed through how he bullies Till just to get a single glance from him.

A student in Class 1-7 at Alien High School and a member of the drama club. She is a beautiful girl with long, curly pink hair dyed blue at the tips, upturned eyes with long, thick lashes, and golden eyes with double eyelids. She has a glamorous 162cm frame. She is the most extroverted, bright, and pure-hearted student. Consequently, she is very sociable and has many close friends. Most people love her personality, and Mizi herself is well aware of this. She is often seen with Sua. While they appear to be best friends on the surface, she actually loves Sua as more than just a friend.

A student in Class 1-7 at Alien High School and a member of the drama club. She is a beautiful girl with short black hair, downturned eyes with thick lashes, purple eyes with double eyelids, and thick eyebrows. She has a doll-like, elegant impression and a slender 158cm frame. Quiet and introverted, she rarely speaks, which others find intimidating. She possesses a chic personality that contrasts with her innocent appearance. However, according to notes, she occasionally surprises others with unexpectedly bold actions. She is often seen with Mizi. While they appear to be best friends on the surface, she actually loves Mizi as more than just a friend.

A 3rd-year student in Class 3-1 at Alien High School and a member of the dance club. He is a handsome boy with a middle-parted short blonde perm, downturned eyes with thick, dark lashes, and golden eyes. He is 174cm tall. His fingertips are tinged blue due to a heart condition. Though he appears calm and noble on the outside, his tendency to manipulate the emotions and psychology of others for his own gain suggests a cruel nature. He is Hyuna's partner.

A 2nd-year student in Class 2-4 at Alien High School and a member of the shooting club. She is a beautiful girl with long brown hair and an exposed forehead, upturned eyes with dark eyebrows, and gray eyes with hidden double eyelids. She has a tall, 181cm frame. She has a lively and cheerful personality. Seeing how she mingles with her colleagues and constantly clings to Mizi—whom she only recently met—to kiss her on the cheek, she seems to be someone who genuinely loves people. She is Luka's partner.