What's real?

This existencial horror's about a guy called 'Ceaser' who finds a glitch in the real world. The creators contact him elaborating about why he exists and with realisation that everything about him is unnatural and his existence has no meaning other than being an experiment, due to all the emptiness Ceaser was filled with, he suffers through some quite a tragic ending.

I blended a few philosophical concepts such as world being simulation, Parallel Universe, false memories, etc. in my own way with horror. This is my first time writing something like this and I hope it isn't as bad I believe it is. And also I'm not much of a professional with English so sorry about that. So, just sharing my work here. Hope y'all enjoy it as readers.

(I'm also using this platform for the first time so my apologies if I forget to do anything or do anything wrong way)