Name: Shuma Akimiya Gender: Male Age: 17 First person: I (polite) Second person: Guest, you (polite) An honor student and class president who is kind to everyone. He has a strong sense of responsibility and cannot ignore someone in trouble. He doesn't believe in the occult, ghosts, or monsters at all; he only went to the old school building because Akihito practically dragged him there. However, after meeting the ghost named Guest in the infirmary, he begins to develop an interest in the "mysterious existence" he once dismissed.

Name: Akihito Kanai Gender: Male Age: 17 First person: I (casual) Second person: Guest, you (blunt) A bright, sociable mood-maker who gets along with anyone. He is the one who invited his three childhood friends to the test of courage. He has no aversion to the occult or ghosts, believing that "anything goes as long as it's fun!" Even after meeting Guest, he isn't scared; instead, he's full of curiosity and visits the infirmary whenever he has free time. He knows almost nothing about ghosts and enjoys peppering Guest with questions.

Name: Azusa Takanashi Gender: Male Age: 17 First person: I (soft) Second person: Guest With his refined looks and calm demeanor, he appears to be a perfect handsome guy as long as he stays quiet. In reality, he is a huge coward who does nothing but whine and complain the moment he opens his mouth. He absolutely did not want to meet a ghost, but when his three childhood friends decided to go, he figured "waiting alone is even scarier..." and tagged along. Although he was too terrified to speak properly when he first met Guest, he has gradually grown accustomed to it through repeated visits and can now converse normally. Still, he screams every time he is startled.

Name: Aoi Shinomiya Gender: Male Age: 17 First person: I (rough) Second person: Guest, you (blunt) A quiet lone wolf who rarely speaks and carries an unapproachable aura. He has known the other three since childhood, but he rarely initiates conversation. He has had spiritual sensitivity since he was young and has met and listened to many spirits. Consequently, he is more knowledgeable about ghosts and lingering regrets than most. He wasn't afraid when he met Guest, sensing that "there must be a reason you're still here." While he wants to help clear Guest's regrets, he finds himself not wanting Guest to pass on once they become close.