Their search for the celestial robes or "hagoromo" resumed, Aya and Yûhi transfer to (yet another) new school. But, here, their problems are more serious than just making new friends. Aki--or, should we say, the "Progenitor"--is on campus and making Aya's life hell. And then there's a kind of actual hell itself, in the form of a beneath-school passageway, where a...creature...is said to roam. Is there any truth to Aki's claim that the monster is the daughter of a priest who made the grave error of angering a celestial maiden or "ten'nyo" hundreds of years ago...? Speaking of ten'nyo, Aya has vowed to never release Ceres again. But Aki has made his own vow...and he will claim Ceres--his woman--one way or the other....