Wow…he legit got his head cut off. And after such an impressive display of the powers that he gained too. What a sad way to go. He *sniff* was so brave. But in all seriousness, we have a vampire who just got dismembered. More than likely there is some regeneration magic going on here. Plus, his head may have come off, but his heart looks untouched.
I’d say it’s highly likely that he’ll finally awaken to his power (maybe drink Yukina’s blood to get himself going?). Next week will likely spell the end for this midboss. I’m sure Koujo’s powers will also prove themselves to be even harder to control after this battle.