I was curious what this is a reference to, so I looked it up.
It's nothing good or wholesome, this might ruin the cute artwork for you, it's a series of Girls und Panzer doujins featuring rape, violence, humiliation and so on.

MiiaBestLamia said:

I was curious what this is a reference to, so I looked it up.
It's nothing good or wholesome, this might ruin the cute artwork for you, it's a series of Girls und Panzer doujins featuring rape, violence, humiliation and so on.

Damn, man, that's pretty scary, thanks for the heads up