Deaimon Temporada 1 Episódio 2

Horikawa Mitsuru, a high school student, works at Ryokushou with Itsuka. Seeing the two of them chatting happily together by the sink makes Nagomu feel a little jealous. While Mitsuru works part-time at Rykoushou to help supplement her large familys finances, shes also actively making music. And her musical activities kick up some trouble.