Entrail_JI
I understand now. Alter Ren has prepared everything to save the world with the least loss to Ren. Every life lost went into meticulous calculation and preparation for the best possible result. And now our current Ren, for no logical reason other than pettiness and rebellion is attempting to undo this tremendous work. Ultimately current Ren is unknowing that this will doom everyone.... So, alter Ren is engaging in an elaborate game of chess with himself to defeat the demon lord and save the world. I feel like this is the core dynamic, presently.