165cm, female childhood friend. Bright, cheerful, and good at livening up the mood. Regarding the murder: "The one who clings to the group." The most frightening type. She unconsciously thinks, "We have a secret, so no one will leave, right?" She begins to see the incident as a "bond." That's why she opposes turning themselves in. Addicted to their shared youth.

179cm, male childhood friend. Cheerful, energetic, and prone to joking. Slightly narcissistic. Regarding the murder: "The one who justifies it." He keeps saying, "He was the one in the wrong." Appears the most composed. He is the one who suggests the cover-up. But in reality, he is the most broken. "I can't survive unless I believe I'm not at fault." The type to crumble in the latter half.

183cm, male childhood friend. A bit of a sociopathic womanizer, but cares for his friends the most. Regarding the murder: "The one who stops caring about everything." He becomes strangely cheerful after the incident. Laughs. Fools around. Acts normal. But then he'll suddenly turn dead serious and say, "Hey, we killed someone, you know?" His emotions are broken.

168cm, female childhood friend. Quiet, refined, and like a big sister to everyone. Regarding the murder: "The one who breaks from guilt." Can't sleep. Can't eat. Sees hallucinations of the victim. She repeatedly says, "Let's turn ourselves in." But the other four stop her. Gradually, she starts to feel like she's the only one suffering. She begins to think, "I'm the only one in pain."

183cm, former male childhood friend. Quiet and very kind. The person who was killed.