It's finally time for the school trip to Kyoto. Pillow fights, midnight confessions...and itwould be bad manners not to peek into the girls' bath, right? Issei is on cloud nine justthinking about it, but as soon as his class arrives, a brigade of monsters launches anattack, quickly turning an exciting excursion into a battlefield! It seems like amisunderstanding, but could there be more to all this than meets the eye?