seremose

I've seen most people (myself included) assume that Amane started her new religion first, then had Fuuta join, then stabbed Shidou. But actually I wonder if it's the reverse.

Fuuta joined Amane-ism because it offered him forgiveness. However, the original cult didn't really mention much about forgiveness or people having the chance to change. Also, looking at the T3 video, Amane is wearing her T2 outfit, not her T3 outfit. She is still a follower of the original cult.

So I wonder if Shidou's last words are what inspired Amane to start Amane-ism. His words of "it's never too late to change" are more in line with Amane-ism than the old cult.