Yui Horie
The season features two pieces of theme music: one opening theme, and one ending theme. , the ending theme, was written by Saori Kodama, composed by Satoru Kōsaki, and sung by Marina Kawano. The opening theme, "perfect slumbers", was composed by Satoru Kōsaki, written by Meg Rock, and sung by cast member Yui Horie (Tsubasa Hanekawa).