Season 1 - Dekin no Mogura: The Earthbound Mole

One day, university students Magi and Yaeko witness a Kōjien dictionary falling on the head of a man and hurting him. However, despite bleeding from his head, the man expresses that he does not want them to call an ambulance or the police for him, which seems suspicious. In addition, after this encounter, both Magi and Yaeko start seeing strange things.