@Cuervo99
Well done. I thought it looked good all the way until the last page.
Things that should be changed on the last page:
Why don't you taste... -> Why don't you try... (demon king getting so scared doesn't flow as neatly from "taste")
This poison that is so terrible that could -> This poison that is so terrible that it could (you just forgot an it there)
Sesurat -> Seurat (at least that's what she was named earlier in the episode, I guess the earlies ones might have been wrong though)
Less important, can be changed or not according to taste:
Antibodies -> Immunity (applies to all antibodies in the comic, also those on earlier pages)