User blog comment:AquilaeAltair/OnS Theories. Third Theory (S3) - The reason of Guren's betrayal/@comment-36009152-20190703020437/@comment-38762161-20190716032956

You know, for this I suggest you to look for a vid that is called the Final Lesson which was developed by Honkai Impact 3rd. I saw it a while ago and it holds a representation of what I have in might somehow.

It somehow relates to the current state of Shinoa being possessed, Guren center is not touched on the vid but I somehow believe he'll end up trying to save Shinoa or at least give her the key to save herself or at least get control.

I believe that Guren is not evil but he's not good at all, it's more like a neutral side but even going far for this betrayal, it only shows that Guren is running out of time and the goal or end they want to achieve, it has to do with the current situation, to give the squad an oportunity to beat ancient beasts just like Guren stated in chapter 68