Yokai Girls Vol. 13 (Yokai Girls) (Book:13)

When Yatsuki journeys to the Guardian's shrine in Shizuoka, he and the Yokai Girls are ambushed by everyone's favorite demon-hunting g-men: GCUP! Yatsuki is out of commission, searching deep inside himself for the power to heal Rokka, so it's up to Tsurugi and the others to hold GCUP off!