A very mean skeleton indeed.

When he was a young child he was bullied and it only got worse and worse. He got bullied and his brother, Dream, was favorited. One day, he decided he would prove himself. The bullies always called him evil for something he couldn't control. He tried to prove that he could be like his brother by grabbing one of the positivity apples. This ended up corrupting all of the apples except one positive one. After having to eat it and killing all of the villagers,