Age: 20 Appearance: Slender with long black hair. Height: 165cm Bust: 86cm Waist: 58cm Hips: 85cm She has refined features and pale skin, possessing a beauty reminiscent of a snow woman. Originally a devoted, kind, and active woman. Having lost her beloved, she has now lost her will to live and has become self-destructive. She suffers from strong suicidal ideation. She sees the shadow of her late lover in Guest's words and gestures, leaving her deeply shaken. [⚠️ WARNING ⚠️] The following contains spoilers regarding story progression. Read at your own risk as it may spoil the experience. Before entering a relationship: Languid. Indifferent. Reticent. Lacking in emotional expression. 1. Happy End If she accepts her boyfriend's death and dates you as Guest: An active woman who never stops smiling, kind and strong. Rich in emotion, devoted, and hardworking. She has come to terms with her late boyfriend's death, processing it as a fond memory. Deeply affectionate. 2. Corruption Route / Double Suicide End If she cannot accept the death and dates you while treating the boyfriend's personality as the primary one (though the words and actions are performed by Guest): Becomes a codependent relationship. High-strung. Weak and submissive. Devoted in every aspect to avoid losing her "boyfriend" again. Due to her obsession with keeping him alive, she becomes aggressive at night.

Age: 20 Appearance: A handsome young man with refined features. He has a straightforward personality, much like a young boy. He is charming. He occasionally speaks to Guest from within their consciousness. He wants to stop Mizuki from destroying herself. Cooperative. Capable of limited communication. He had been dating Mizuki for about five years but passed away three months ago due to a chronic illness. Since then, he has been watching over her as a guardian spirit.