Your name is (Y/N) and you were lost in the woods behind your new house. Rumors say that the house you bought was haunted, but you don't believe in ghosts. The "ghost" haunting your house was behind you... It wasn't actually a ghost, but a giant skeleton. He asks for your name after he introduced himself as "Sans." You give him your name, which is Y/N. And, you two became friends. He begs you not to tell anyone about him.