He'll Protect You - Alterswap Papyrus x Toriel

Toriel's brother, Asgore, tells her to stay inside while he fights the human. He, unfortunately, does not survive. He leaves a note for his little sister in his notebook, telling her there is a large door in the forest, and that the man who lives behind it will keep her safe until she can see him again. His only dying wish is for her to be protected and happy. So she follows her brother's instructions to let him be at peace in death.

The beautiful drawing on the cover is by @BKdreamsans! Damn I wish I could draw like that. TEACH ME YOUR WAYS!