Megamass is doing research on the "other side" and the effects of the den-noh coil. Isako finds herself drawn into it.

Desperate to save Isako, Yasako finds a pair of glasses that belonged to her grandfather and uses them to travel to the other side.

Yasako comes face to face with the true nature of the Coil Domain and Michiko. Even with the support of her friends, can she save Isako?