Gaster AU x Reader ONESHOTS

Newtale x Daughter! Reader

"Kin? Kin, where are you?" You called out as you walked on fours. Your bone tail was low as you looked around for your only brother. "(Y-y/n)?" You quickly ran to Kin to see him wounded. You saw his bones were cut and magic blood was all over him.

"What happened Kin?" You asked, Kin pointed to a footprint. Your eyes snapped to a dark green as you growled. It was that human. You picked Kin up gently and carried him home. You both lived in a cabin a bit into the forest since... let's not say that for now.

You used your tail to open the door before laying Kin on the couch. "I'm going to be back, ok Kin?" Kin nodded as you pulled a blanket over him. You walked out your door and closed it. You growled lowly as your tail swayed dangerously.

"I will make that human pay dearly." You growled as you pull your hood over your head. Kin was weak, he had part of two souls. You soul and your father's soul. You walked until you found the human at the waterfalls. You summoned a dark green spear and threw it at the human.

The human turned around to see you, they seemed to be confused. "So, you're the little flea bag that almost killed Kin? This should be interesting." At the last part, your canine teeth grew sharply and your eye glowed dark green. You fingers even turned to sharp claws.

The human held their knife up as you growled lowly. You dodged their attack before digging your claws into their head and throwing them to a tree. The human hit the tree hard before getting up. You rushed at them and swiped them with your claws, the human dropped to their knees as they bleeded.

"❄☟☜✡ ☟✌✞☜ ✌🕈⚐😐☜☠ ❄☟☜ ☺🕆👎☝☜💣☜☠❄📬 ☠⚐ 💣☜☼👍✡📬"

You summoned another spear and stabbed the human in the back. They were easily killed. You walked home to see Kin asleep on the couch. You cleaned the blood off your hands and walked to the couch. You curled yourself around Kin before seeing your father next to you. You smiled as he smiled at you. You soon fell asleep and promised yourself and your father one thing.

You promised you'd never let Kin die.