[Kaioshin Sama]

Originally Posted by relentlessflame

I'm not too sure, but the one thing that does seem clear from the trailer anyway, is...

Spoiler for Plot suggested in trailer:

Kuroyukihime is planning to go to London after she graduates, and appears to ask Haruyuki to defeat her in the Brain Burst to end her existence in that world.

Spoiler for game trailer and novel content:

It looked like it was indicating that it was some sort of post game content. Possibly a non-canon bonus super boss fight of some sort. They're pretty common in fighting type games (usually referred to as Dream Fights) and even some types of RPG's. The novels appear to be nowhere near ending after all and I've heard absolutely nothing about KYH graduating and going to London from the novels. Hmmm I wonder if there will be more than a few of these then.