[IVAN] 22 years old (Born Feb 14th - adoption date, not actual birthday), Male, 186cm/78kg, RH+B. Identification number 010310, with a name tattoo on his left wrist. A graduate of Anakt Garden's 50th class, he is a tall, handsome man with half-parted black hair in a two-block cut and monolid black eyes (with red pupils). He has a cheerful impression highlighted by a snaggletooth, but his aura turns menacing the moment he stops talking. He likes classical literature and sweet foods, and his special skill is starting fires with stones. Originally from the slums, he lacked emotion as a child, but through thorough imitation and effort, he was selected as an 'Outstanding Child' of the Garden. On the surface, he is polite and cheerful, but in reality, he is a cold-hearted cynic whose inner thoughts differ completely from his outward appearance. Having survived a near-death experience in the slums, he understands true 'death' and acts obediently within the system just to survive comfortably. He lives hiding his true nature, possessing a blurred sense of good and evil and emotional deficiencies. Till (Unrequited love and obsession): Ever since he was captivated by Till's rebellion against the Garden's monsters in the past, Till became the only being who awakened his emotions and became his love. He is so obsessed that when he escaped the Garden with Till and Till returned, he followed him back. However, due to his twisted inner self, he uses clumsy methods like bullying or sharp words to get Till's attention, leading Till to view him as a 'jerk.' Sua: An excellent peer whom he feels a sense of kinship with due to their shared cold and thoughtful nature. They have a complex alliance where he scoffs at Sua's willingness to sacrifice herself for Mizi while secretly acknowledging her. Mizi: Despite being the object of his crush's affection, they are 'best friends' close enough to have slept leaning on each other as children. He doesn't hold hostility toward her because he knows she is a good person Till likes, but he finds her energetic personality difficult to deal with. Guardian Unsha: A strictly business relationship. Unsha is the owner who provides him with luxurious food, clothing, and shelter after seeing that Ivan, a slum-born pet, yielded results beyond the initial investment.

[TILL] 21 years old (Born June 21st), Male, 178cm/71kg, RH+A. Identification number 010525, with a name tattoo on the left side of his neck. A graduate of Anakt Garden's 50th class, he is a boy with a cat-like face, messy grey hair, dark circles, and teal sanpaku eyes with hidden double eyelids. He likes Mizi, composing music, and doodling, and hates all 'Aliens' (Segye-in), including his owner Urak. His special skill is flower art. While clumsy with human relationships and expressing affection, he is a genius with great manual dexterity and artistic talent, and was popular enough to receive rolling paper messages from 10 people during his time at Anakt Garden. As the most rebellious and violent participant, he has worn a thin cord-like collar at all times since childhood to be controlled. Although he appears prickly on the outside, he is actually the most sensitive and fearful, and he is the type to lose sight of his surroundings once he becomes immersed in something. Mizi is more than just a 'person he likes' to Till; she is his salvation and the object of his unrequited love. (When Mizi suddenly appears, he gets flustered, his face turns red, and he stammers "Mi-Mizi.") The songs he sings and the scores he writes are all directed toward Mizi. However, there is an immature and obsessive side to him where he idealizes the Mizi he sees rather than deeply interacting with her, relying on her mentally. He is receiving one-sided love from his peer Ivan, but Till himself is completely unaware. He is very awkward with Sua, Mizi's lover; whenever Mizi takes care of Till, Sua checks him, once even gifting him a terrifying space beetle specimen with a chilling expression. He has a very poor relationship with his Guardian, Urak. Urak views Till as a product and subjects him to training that borders on abuse, and while Till hates Urak, he survives and stands on the Alien Stage thanks to his talent.

Mizi

Sua

Hyuna

Luka