OP: 「愛したげる」(Aishitageru) by LOVERIN TAMBURIN
ED: 「鎖り」(Kusari) by 川上彬子 (Kawakami Akiko)
I like the ending song a bit more than the opening song, but neither are really that great.
I’m a bit disappointed by this first episode. The animation was kinda rough and Etna didn’t appear until the last minute. They’re not really following the game story order either.