Konton devises a plan to destroy the Half-Demon Princesses. Riku offers to help him out. The three girls are lured into a ravine and fall right into Konton’s trap.

Osamu Kirin has been quietly exterminating the demons that have been appearing in the present day. He asks Towa, Setsuna, and Moroha to slay demons at the concert that is happening.

Inuyasha and the others have their hands full with the evil spirits pouring out of the burning Windmill of Time. The three girls and Osamu Kirin try to stop the Grim Comet from falling to the earth.

Osamu Kirin brings the Grim Comet to the feudal era. He convinces Rion that they are both hoping for the same world and promises to make it a reality. Meanwhile, Towa, Setsuna, and Moroha are stuck in the present day.