Rule Horror? But I'm an Immortal King

The Celestial King returns to be a monkey in a circus. His performance involves leaping and bounding around.

I've read up to chapter 21. The most important thing in writing something bizarre is a well-developed, logically consistent set of rules. Here, only five out of six rules are mentioned. Was this intentionally omitted? There's no mention of the protagonist seeing a hidden rule either.

In short, the main character is completely invisible.