Keiichi Okabe doing what he does best but for a mobile gacha and it still goes unreasonably hard. Towatsugai's OST has that same ghostly vocal layering and aching string work you know from NieR, but filtered through this dark yuri fantasy about girls called "Birds" fighting eldritch horrors.
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Birdcage Encounter has these fragile piano lines that just dissolve into distortion. The Encroaching Black shifts into this churning industrial pulse that hits way harder than any phone game deserves. And then Singing Disaster...
that track alone. Wishing on Wings pulls back into something tender right when you need it. The game shut down in 2024, so this soundtrack is basically all that's left. Worth preserving if you ever cared about MONACA's output beyond NieR.