Makube snapped Kizaki out of that stupor with quite an intense speech. It's clear that even if he sees Kizaki has an evil plan, Kizaki is still a friend of his. He does not want Kizaki to die in an alternate dimension slowly losing his sanity.
So if Kizaki has supernatural charms, I wonder how many lady spirits are waiting for him in the afterlife?
What did happen to Nimura-senpai? His hand was left there, and the rest of his body missing? What does Makube think happened to the rest of his body? How will he get that evidence to stop Kizaki from enacting his plan?