One day, university students Maki and Yaeko encounter a man injured by a Kojien (Japanese dictonary) that fell from the sky. There is something wrong with this man, who is bleeding from the head but refuses to go to an ambulance or the police. Furthermore, after meeting this man, the two begin to see strange things...

In this complex and mysterious town, the absurd and the mysterious are not to be questioned! Be careful not to go too deep...

(Source: Kodansha, translated)