Casa-Mikasa!

I'm not too sure either, but I'm pretty certain that the girl masturbating is an imposter. And the real girl is watching the entire situation. Now, that's the part I'm not sure about. Either the imposter trapped or turned the real girl into the yellow goopy-looking statue at the end. 

TRAITOR, HOW DARE YOU HAVE A "GIRLFRIEND" THAT IS "T H I C C". YOU BELONG TO THE GRIND. THE MIND SET OF ALL THAT HAS JERK OFF BEFORE YOU AND THAT WILL CONTINUE FOR THE INEVITABLE FUTURE. YOU SAYING "I cant afford to fap" IS WEAK AND INSIPID. HOW LONG WELL THIS RELATIONSHIP CONTINUE FOR MMMMMMMMMMM Labirios OR SHOULD I SAY HOW LONG YOU WOULD LIKE FOR IT TO CONTINUE. WHAT HAPPENS IN THE CASE THAT SHE DOESN'T LOVE YOU ANY MORE MMMMMM Labirios. THE POINT IM MAKING IS THAT NEXT TIME YOU HAVE TO WEIGH YOUR CHOICES AND DECISONS ...BETTER. your like an son to me LABIRIOS and like a dad I don't what you to get hurt by the big bad world. Ill all ways be there for you Labirios even when im walking you out of hell like Eurydice and Auloniad. 

your dearly Hatsune Miku.