: Reviewers compare the soundtrack to the works of Hiroyuki Sawano and Yuki Kajiura , noting the use of layered choirs to create a "haunting feeling of impending doom". The music effectively mirrors the anime's transition from psychological horror to intense action.

: The score is noted for its "hard guitar" to evoke danger and violence alongside "breezy tropicalia" that fits the island setting.

: "Hoshi ga Oyogu" by Macaroni Enpitsu is frequently cited as a "banger" with 90s/2000s alt-rock and grunge vibes similar to Nirvana or Red Hot Chili Peppers .

: The first ending, "Kaika" by cadode , is praised for its "cathartic release" and mysterious sound after tense episodes.