You were in the void. You sat next to a gloopy person. "Hello child, I am W.D gaster. Father of Sans."(If you don't like this theory then assume it as brother or something.)

"I'm Y/N." You greeted. "Oh. I know your name. Sans really cares about you. He talked to me so much about you." He said softly smiling.

"When Sans talks to you every now and then. Gaster nodded. "But he forgets me every now and then when a reset is made." Said Gaster.

"Does he still-

"Yes he remembers me. Just our conversation." Said Gaster. "Oh. I need to go back. Can I go back?" You asked.

"Oh yes. You can. But tell him one thing please..." "Yeah? Anything!" You said smiling softly. He smiled sadly.

"Don't forget." Said Gaster. You hugged him. "I won't. And I will tell him what you said." You said.

He smiled softly. "Thank you Y/N."

"But can't you come to?" You asked. "I can't. As much as I wanted to. But don't worry. I will be fine." Said Gaster.

"Ok Bye Gaster." You said as he smiled softly. You went into the skelebros house. "Oh... it must be a night time." You muttered.

You walked upstairs and opened Sans door. His eye glowed blue.

It seemed he was having a nightmare. "P-Please... come back..." sans muttered.

You slowly rubbed his back. " I'm here." You whispered. His eye stopped glowing blue. Blue tears came out of his eye sockets.

"Y-Y/N?"

"Also gaster wanted me to say something. Don't forget." You said as you softly smiled.

He wrapped his arms around you sobbing.

"It's going to be okay." You mumbled as you buried your face into his shoulder.

A/N

I felt so sad and bad for gaster :c