Shido Itsuka is an ordinary high school student living with his little sister in Tengu City, a city that is often disrupted by "spatial quakes". During a spatial quake at the beginning of the school year, he meets a beautiful and mysterious "Spirit".
Shido goes to Origami's apartment to look for Hermit's puppet, Yoshinon, who was lost during the last fight, and Tohka talks with Reine about her feelings for Shido.