My Lazybones Sans X Female Reader

So you are a sweet and shy 15 year old girl who lives with her mother and father.Your Mother and Father have decided to take you to a trip to Mt.Ebott for a family vacation.Once you got there you decided you've wanted some alone time even though your father disapproves your mother convinces your father to let you explore around for about an hour.While you were exploring by yourself you found a hole.Your mother and father told you about the legends that lurk in the underground.You were about to go back,but you slipped and fell into the hole!You try to find your way back to your parents the thing is you find out the legends are true!You meet a pun loving skeleton and develop a crush on him,but to go back to your parents will you fight the monsters or will you mercy them?