15章 Normal Stage theme Extended to 20 minutes+
I will edit the title when the official BGM released in game.
This is the newest theme of SNP chapter 15 stories , This is the normal stage theme, but it's feels like a boss battle theme too at the same time hahaha.
Other Shironeko Project extended BGM:
https://www.youtube.com/playlist?list=PLJSFfiBIf4LDlQUpy154dNJiRqeVQaZA3