Isekai Quartet (song)

Isekai Quartet (異世界かるてっと, Isekai Karutetto) is the opening of Isekai Quartet Season 1, performed by (who voices Ainz Ooal Gown),  (who voices Kazuma Sato),  (who voices Subaru Natsuki) and  (who voices Tanya von Degurechaff).