In my AU Gregory is a robot (built by William after Evan/CCs death out of grief) Evan is connected to this robot and possesses it. The reason Micheal never saw this robot is because Will kept it away in a box, never going through with the idea. (But because Evan possessed it, he was able to get into the real world) Therefore, Micheal doesn’t know that Gregory is Evan. Micheal never meant to kill Evan (watch my backstory of the Afton for more reference) but Evan never knew that. After Henry set Pizzeria Simulator aka Freddy Fazbears Pizzeria on fire, Micheal was trapped inside. He was so tired of being undead that he didn’t bother escaping. His soul was left to wonder, eventually possessing Glamrock Freddy. When he first saw Gregory, it reminded him of Evan which is why he glitched out at the opening scene of the game. Micheal took control and is why he is so forgiving of Gregory, because it reminds him of his dead brother. In my AU, Glamrock Chica, Monty, & Roxy are possessed by the bullies who has the idea for the prank. William wanted them to suffer so he trapped their souls into animatronics before he died. (I know it doesn’t make much sense) All of them blame Evan for their imprisonments, so when they see Gregory, they go into rage as it reminds them of Evan. Micheal knows it’s his friends trapped in the robots, which is why he feel upset at them being destroyed. Evan also knows their his past tormentors, which is why he feels no remorse in destroying them. (I apologize for the long description)