Full title: 幽雅に咲かせ、墨染の桜 ～ Border of Life (Bloom Nobly, Ink-Black Cherry Blossom ~ Border of Life) Theme of Yuyuko Saigyouji. Not to be confused for the music for Yuyuko’s final attack, ALSO titled simply “Border of Life.”
Art credits: Multiple sources* attribute this photo to an “A Flow” who can be found at (https://www.pixiv.net/en/users/27696) though they have since taken down this particular picture from their account.
* (https://www.zerochan.net/133238) (https://e-shuushuu.net/image/213443/)
This is one of my favorite video game tracks, but man did it fight me in some places. I still think it came out pretty fun though!