Gaster AU x Reader ONESHOTS

Glitchtale! WD Gaster x Light grey! Reader

"Stay behind me, Frisk!" You ordered your younger sibling, Frisk nodded as you both stood in front Chara. "Ha! You think you can protect Frisk with your pathetic 'hope'?" Chara sneered as Flowey, Sans, and Gaster laid on the ground.

"This is going to be fuuuun!~" Chara sneered as Gaster, Flowey and Sans groaned. You pulled out the bow and arrow set and slipped the quiver on. "Frisk. Are you going to be ok?" You asked as you glanced at Frisk, you saw they nodded slowly. "Chara," Your soul started to beat, like a true hero, "I will save this world."

Chara gripped their knife as you got an arrow ready. "I am the Angel of the undergrounds. Their true hopes and dreams. I. Am. (Y/n)!" With that, you fired an arrow, Chara dodged and went after you. Frisk rushed over to Gaster and pulled his arm up.

(Y/n) can't fight Chara alone! Frisk signed worryingly, you dodged Chara's attack and pulled out your royal scarf. You wrapped it around your neck before your eyes started to shine a light grey. You placed your bow in your inventory.

You then pulled out your true weapon. A long and pure iron dagger. "Oh? Going to fight on a better ground? Very well... You know what BLACK means?" You gasped at the huge amount of hate behind Chara. "It means hate... And I have looots to share!" You gripped the dagger and got ready. You closed your eyes and focused on your soul.

*Where there is HOPE, there is FAITH

The four watched as you started to create a beam of light, you fired it straight at the ever growing force of hate. The force was much greater than your power, it was too much.

*Where there is FAITH, MIRACLES happen

You lost control of the beam of light and got hit terribly. "NO!" Gaster shouted, you laid on the ground, black lines crawling up your skin and you bleeding. "*KID!" (Y/N)! You tried to get up, but your body felt so weak. Your eye lids fell heavy as Chara walked over, knife in hand, ready to finish the job.

As soon as Chars went to stab you, you gained control and used the hate to stop Chara by painfully grabbed their wrist. "Do YOU know what BLACK means?" You sneered as you smiled in an obviously evil way.

"It means HATE and I think you should KEEP IT TO YOURSELF..." You threw Chara and rushed for the final attack. The four saw you held Chara tightly. "NOW!" You ordered as you tried to hold Chara. "*kid! You're gonna get hit!" "I don't care! Do it!"

- LE TIME SKIP -

You and Frisk smiled as you went to visit Gaster. It had been at least a year since you defeated Chara and brought back Asriel. Sure, you were in the hospital for a long time, but it was worth it. "I can't wait to see Gaster!" Me too! I'm sure he missed you!

You blushed a little as Frisk snickered, you ruffled their hair before they opened Gaster's door. You noticed Gaster working in something. You blushed since it was awkward before coughing into your hand. Gaster whipped around with a surprised face.

"H..hi..." You muttered nervously while waving your hand slightly. What happened next took you by surprise. Gaster had rushed over and... um... what's a good way to explain it? Let's say Alphys is going to be fan girling for a looooong loooong time. Frisk had taken a picture before Gaster pulled away from his surprise kiss.

"I missed you." Gaster whispered before hugging you. Frisk snickered at your face. 'AAAAAA' was written all over it as your face was literally red. Frisk got into the hug by hugging your leg, you smiled before Gaster kissed your cheek. "I love you (y/n)." "I..I love you too Gaster." Frisk, again, snickered at how red your face was.