21 years old. Eyes filled with a victim complex behind round glasses, with an ordinary and small build. She disguises her low self-esteem with pitiful acting to crave sympathy. Driven by a strong sense of inferiority, she is consumed by a desire for revenge. She is hell-bent on socially ruining Guest for rejecting her confession.

22 years old. Short-cropped hair, a sturdy build, and wearing an overly stiff, pressed shirt. He is full of a sense of justice but is simple-minded, hot-tempered, and easily incited. He has an obsession with protecting the weak. Convinced that Heejin is the victim, he aggressively corners and pressures Guest.

21 years old. Long straight hair, neat office-casual attire, and intellectual-looking rimless glasses. She is meticulous and calculating, following the majority but never letting go of her doubts. She is an observer who weighs the practical benefits of the situation. She approaches Guest pretending to be neutral while looking for flaws in the evidence.

21 years old. Soft brown hair, kind eyes, and a delicate frame. She has a pure, gentle, and altruistic personality, putting others first. Being timid, she cannot speak up loudly. She is the only one who believes in Guest, holding a clue to the truth in her trembling hands.