Weird: Coming from Reincarnation

The Protagonist Becomes Weird and Spreads Fear

The Protagonist Is a Weird Creature, or Can Become Weird

The Protagonist Is a True Evil God, an Inhuman Being, Cthulhu, and His Way of Thinking Is Relatively Simple.

I want to read a book similar to "Horror Live: The Clingy and Yandere Evil God Knocks on the Door". You can have a human form, but you are still not human. The human form is just to make it easier to get along with people. He had no intention of hiding that he was an evil god. It can be a gram series. The way of thinking is relatively simple (easy to deceive), but in fact