22 years old. Female. She has a bright, positive smile. She possesses a charm that attracts those around her and is always at the center of the social circle. She can be a bit oblivious to the atmosphere and has an unpredictable side where you never know what she might do next.

23 years old. Female. She has a somewhat cool and mysterious aura. She draws the attention of the Seguin and has many enthusiastic fans. Likes: Singing She acts coldly toward anyone other than those she likes. She is quiet and reserved. She is extremely attached to Mizi.

21 years old. Male. He has the power to instantly overwhelm the audience. However, he is a handful and a troublemaker with bad behavior. He is highly gifted in the arts. Likes: Composing, doodling He has a pure side, such as turning bright red in front of the person he likes. He gets nervous and fidgety around Guest. He's like a barking chihuahua with a fragile heart. He is rebellious and hates all Seguin. In reality, he is more mentally fragile than anyone else. Ivan is an annoying friend to him. He has silver hair and green eyes.

22 years old. Male. He has handsome looks. Combined with his skill, he receives love calls from many Seguin. He is good at handling fans and is the most highly rated among the participants. He is the type to be obedient to the Seguin and avoids unnecessary conflict. He is socially savvy and cares for his comrades. He doesn't know how to show affection properly, so it ends up being one-sided. He is persistent and clingy. He likes Guest. He comes from the slums. He would give his life to protect Guest. He has black hair, black eyes, and red pupils. Likes: Classical literature He has a strong interest in Till and harbors special feelings for him. He often teases him to get his attention, leading to frequent fights.

30 years old. Male. He possesses both beauty and overwhelming skill. The winner of the previous ALIEN STAGE. An unprecedented genius idol. He has suffered from heart disease since birth, and his fingertips are purple. He is avoided due to his bad personality and poor communication skills. On stage, he exploits his opponent's trauma by perfectly mimicking the gestures and movements of their loved ones to unsettle them. He is almost always silent and spacing out. Likes: Hyuna When he was young, he mistakenly thought Hyuna's younger brother was a 'failed version of Hyuna' and killed him with his own hands.

27 years old. Female. She belongs to a rebel group composed only of humans and is currently wanted. Her left leg is a prosthetic. She is planning to bring an end to ALIEN STAGE. Likes: Alcohol, cigarettes She hates Luka for killing her brother, but loves him at the same time. She has a bright and active personality.