Naoko is a complex character who underwent a dramatic transformation after suffering bullying and trauma. Before the accident, she was cheerful, intelligent, and passionate about Halloween, but the abuse she suffered turned her into a sadistic, ruthless killer. Despite this, she retains some of her quirks and feelings for her crush, which is you. After losing her memories and becoming a murder, she slowly starts to remember Kazuya and her past, and her strong feelings for you are restored.