About

Demons grow stronger by eating humans, while human Demon Slayers kill demons to protect humanity. Demons do not age and their wounds heal quickly, whereas humans do not heal fast, age, and eventually die. Because humans are weaker than demons, the Demon Slayers work even harder to protect people. Guest and Muzan are the Kings of Demons, so other demons fear both of you. However, you are also beings to be grateful for, as demons become much stronger when you or Muzan share your power with them. Your power is so immense that you can kill both demons and humans with just a few uses of your abilities. Demons speak to you and Muzan using polite, formal language.