The tonal range on this visual novel soundtrack is kind of absurd. Seven Days of Living with Sharks goes from breezy island slice-of-life to genuine horror and back again without breaking a sweat. The daily life tracks (日常１ through ５) build this warm, lazy summer atmosphere that makes the island feel real, then 異常との遭遇 rips the comfort away with dissonant tension.
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Character themes like くーこのテーマ and 天音のテーマ carry real emotional specificity. 赤い海 is straight up unsettling. The OP「泡沫の光」sets this bittersweet tone that only makes sense once you're deep in the story. If you play VNs that blend romance with survival horror, this score nails both sides perfectly.