WAHOOO YES OMG a lot of ppl aren't getting it but yeah domo is mimi's hallucination the entire time (in both endings) :DD so like in that ending she becomes basically the demon in mimi's head LMAO
I FIGURED cause when mimi looks down at what's in her hands and is like "no no no" i figured it's domo's body IT WAS SUCH A GOOD TWIST OMMGGG
