The flock of panties that flew off into the sky in Episode 2 have returned to Tomoki! Tomoki is estatic, but Sohara uses one of Ikaros's cards to make it so that any panties Tomoki sees will explode. Tomoki decorates his house with all of the panties, without knowing what Sohara has done. Will Tomoki be able to escape from his home with panty explosions looming around every corner? It's the first real action in "SoraOto"!