Sans had taken one of his 'shortcuts' to the castle of King Asgore. (aka King Fluffybuns) He was not expecting the arrival of the young skeleton and a human, so he was quite surprised.
"Sans, did you find this human?" He asked.
" Yes, I did" Sans said.
"Thank you Sans. You may leave now."
Sans quickly left.
"Now, human, I know you probably don't want to fight, but since your a human, you have to be harvested for your soul" Asgore explained.
"Well, if i have to be harvested for my soul,so do you." Opal replied .
"What?" Asgore said, obviously surprised and offputten by the human's statement.
" I've got a monsters soul. Go ahead, check. " Opal said calmly.
*Asgore entered a battle
"Y-you're right!" He exclaimed. " Well...I suppose you could stay in the underground, in secret. "
"Okay. How in secret though?"
"Here, wait a minute" Fluffybuns quickly ran off to the next room. He came back a minute later with a large cloak.
"Here, put this on" he told Opal. She put it on. "There. Now, off the cliff of Snowdin there is a small, abandon house. I would like you to live there. During the day you shall offer a quick transportation service around the underground in a boat, and at night you will sleep in that house. Understood?"
"Completely. Goodbye Fluffybuns." She immediately left after taking the boat.
After this, Flowey started a new SAVE file everytime time he reset, it reset back to this point. This went on for several years, with many new SAVE points. Until, a little human in a stripped shirt fell down.
A/N: Not the best chapter, but I really tried.
