Things have only gotten stranger for Shido ever since Tohka transferred to his school, especially since she and Origami seem to go at it over the tiniest of things. Lately, it seems the only place he can catch a break is in the comfort of his own home. Unfortunately for him, that's all about to change. Apparently, he's going to be living under the same roof as Tohka as part of his new "training" regimen... And just when he's feeling most vulnerable, Shido stumbles upon a second Spirit, caught in a sudden deluge. You know what they say: when it rains, it pours...