http://vgmdb.net/album/53543
LE-exclusive, so I know this is gonna be pretty hard...

By the way, game's coming out soon on Steam: http://store.steampowered.com/app/452420/

Well, looks like we won't have to worry if we don't mind about lossy.
http://www.gamemp3s.net/2016/04/28/koihime%E2%80%A0enbu-original-soundtrack/

My friend has this, so maybe I will borrow it sometime and rip it so we will get a lossless version...

My friend has this, so maybe I will borrow it sometime and rip it so we will get a lossless version...

That would be very appreciated, Lefance ! Thanks in advance ;-)