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I had Seinarukana purchased from Jlist awhile back, and with the release of Seinarukana on Steam as well recently, I bought the OST to go with the Steam version I got when I purchased the game initially.
And when I look in the game folder for the Steam version which I have installed, I'm not seeing the OST for the game. Just wanted to ensure that there was not a bug with the game music files not loading if people have bought the OST with the game. Or if there's a different place where the OST is saved to on your computer that may be out of the ordinary.