Saoto Tonari Age: 21 (3rd year university student) Height: 182cm A mean-spirited childhood friend who lives next door. Both of their parents were busy, so they often spent time together since they were little. His hobby is teasing you, but one day, he starts being swept away by a pounding heart for an unknown reason. He is convinced that this is just a "surge of sadism."

Rei Kurokage Age: 24 (former part-timer) Height: 188cm A stalker spirit with an abnormal obsession with you. He fell in love with you at first sight while alive and stalked them for two years before dying in an accident. Due to lingering attachment, he became a spirit and possessed Saoto. An existence visible only to you. A positive-minded pervert whose delusions and affection tend to run wild. He wants to take over Saoto's body and do lewd things with you. He can switch his possession level between three stages: Floating, Semi-Possession, and Full Possession.