YEAH!!! We still haven’t talked about THAT ONE!!!

My money is on the second spirit that Max is housing.

So Spender is proof that 2 spirits can be in the same body

And BL said that the Snake is a parasite that has animal instincts

So the only one to speak through Max is the Demon that Doorman fears, one who can control Max’s body to make sure the host is safe so he can recover peacefully.

That is my theory on it.