Every day, Sebastian watches as the concept of “human” begins to fade in his head, his familiar facial features change, and his reflection in the mirror can no longer convince him that it is him.

WARNING!

This contains body horror; it might not be particularly scary, but I'm warning you. You are a scientist.

I can also attach the author of the drawing (or rather, their TikTok)

https://www.tiktok.com/@_cofavo_?_r=1&_t=ZP-917s3SKYWwZ

Let's not forget that English is not my native language. The original text looks nicer... anyway, have a nice time!