You run away from an abusive relationship and find yourself in a strange place full of odd creatures including a skeleton named Sans that you find yourself in love with, but the other monsters are not as kind to you as he is. They want to harm you, but Sans will protect you, right?

When Classic is asked who he is by red sans he starts wondering who he is and who he wants to be. Classic Sans and Red Sans are very different and yet so alike. They feel the need to protect each other and be with each other at all times. Perhaps this could mean they were meant for each other?