WAIT A SECOND.
I knew I recognized this from somewhere, isn't this a reference to Sakura Wars?

Specifically, the first one?
The MC as oogami_ichirou and Sakura Saber as shinguuji_sakura!
Here is proof of the two:

post #814345
post #2371256

There is a picture that fits both of them but I couldn't find it on here sadly.
Edit: Silly me, I forgot to mention that the commentary is about the Sakura Taisen/Wars musical soundtrack.
Anyways, adding the reference tags and sorry for the wall of text!