Looking for this soundtrack, its been out for a long time now but seems to be super rare to find like the Bubuki soundtrack. The music was pretty good when I watched the anime so hopefully someone can buy/find it. :3
https://vgmdb.net/album/65947
Been doing some digging, and it looks as though this was only made available as an enclosure with the blu-ray box set in Japan - I couldn't find it listed anywhere by itself, with any of the usual suspects (cdjapan, playasia etc). Even Amazon.jp only list is as 'no longer available'
https://www.amazon.co.jp/%E3%82%BF%E3%82%A4%E3%83%A0%E3%83%88%E3%83%A9%E3%8 3%99%E3%83%AB%E5%B0%91%E5%A5%B3%EF%BD%9E%E3%83%9E% E3%83%AA%E3%83%BB%E3%83%AF%E3%82%AB%E3%81%A88%E4%B A%BA%E3%81%AE%E7%A7%91%E5%AD%A6%E8%80%85%E3%81%9F% E3%81%A1%EF%BD%9E-%E3%82%B9%E3%82%BF%E3%82%A4%E3%83%AA%E3%83%83%E3%8 2%B7%E3%83%A5-Blu-ray-%E3%82%B5%E3%83%B3%E3%83%88%E3%83%A9CD-%E8%A8%AD%E5%AE%9A%E8%B3%87%E6%96%99%E9%9B%86/dp/B01M72I7X2/ref=sr_1_fkmr1_4?ie=UTF8&qid=1548781356&sr=8-4-fkmr1&keywords=%E3%82%BF%E3%82%A4%E3%83%A0%E3%83%88%E3%8 3%A9%E3%83%99%E3%83%AB%E5%B0%91%E5%A5%B3%EF%BD%9E% E3%83%9E%E3%83%AA%E3%83%BB%E3%83%AF%E3%82%AB%E3%81 %A88%E4%BA%BA%E3%81%AE%E7%A7%91%E5%AD%A6%E8%80%85% E3%81%9F%E3%81%A1%EF%BD%9E+%E3%82%AA%E3%83%AA%E3%8 2%B8%E3%83%8A%E3%83%AB+%E3%82%B5%E3%82%A6%E3%83%B3 %E3%83%89%E3%83%88%E3%83%A9%E3%83%83%E3%82%AF
I wouldn't hold out much hope of getting it, I'm afraid, which is a pity 'cause I really enjoyed the anime too, and would love the CD. :-(
Just noticed, the vgmdb page lists it as 'Original Soundtrack, Prototype/Unused' :-(