A Fairy Tale for the Doomed Monster

I possessed the body of a terminally ill villain destined to bring about the end of the world by turning it into a sea of fire. Fortunately, it is still one year before the revelation of destruction. Since my life is terminally ill and the ending is already decided anyway, I decided to enjoy some rest in a cabin in the woods and make a quiet exit before the apocalypse arrives. …But then. One day, I find Jed in a cave, covered in blood. Unable to just pass him by, I bring him back to the cabin and take care of him. "What is this? Some kind of soot-sprite?" "I-I'm not a soot-sprite! I have a name too…!" "What is it?" "My name is Harto!" "Harto? Even your name is trivial." "…Hehe. Yo...