A Special Blueberry {Bad Sanses X Blue!Reader} (Slow Updates)

A Brotherly Treasure

Y/n shuffled a bit closer to Error, making sure there was a bit of a gap between the both of them as Error opened a one-way portal to Underfell copy #690. Y/n and Error watched as the Fell!Sans was walking around a barren Snowdin.

The Fell!Sans basically had the same injuries Y/n had, but instead of having a chipped cheekbone he had a quarter of his skull missing and his mouth seemed to be melting. Y/n stared at the Fell!Sans 'why does this Fell remind me of Nathaniel?' They thought before their eyesockets widened slightly as a image of Nathaniel flashed in their view before disappearing, replacing Nathaniel with the Fell!Sans.

Y/n looked at Error who was giving them a confused expression "I...I think I found my younger brother..." They said, Error's eyesockets widening slightly "..." He immediately made the one-way portal disappear and summoned an actual portal to the Underfell copy. Y/n immediately jumped through the portal, Error going through after them.

Y/n looked around and noticed that they were infront of the ruins. They looked towards the doors and noticed that they seemed to be roughly kicked open. Y/n and Error walked towards Snowdin, noticing how barren the area was "..." Y/n and Error kept walking, eventually stopping near the entrance to Snowdin.

They both walked into Snowdin before quickly dodging the bone attack thrown at them. Y/n looked at the Nathaniel and made eyesockets to eyesockets with him. Nathaniel stared at them a few moments before gasping "...Y-Y/n?" He said lightly. Y/n smiled softly and nodded "yep, it's me...Nath!" They said, spreading their arms.

Nathaniel immediately rushed to them and tightly hugged them before crying loudly. Y/n smiled softly and hugged him back "it's ok..it's ok... everything is going to be fine..." They said softly. Nathaniel eventually calmed down and pulled away before noticing Error "...." He looked at Y/n before pointing at Error "why is Glitchy-Boy here?" He asked making Y/n chuckle lightly "it's a long story...why is it so barren here?" They asked softly.

Nathaniel sighed lightly"...I....I had appeared here randomly....but I'm pretty sure this is a genocide timeline... I'm the only one here, the rest of the monsters are gone...the edge of this au was here with me...until...he couldn't deal with what was happening and....begged me to...kill him....and I did...I regret it so much...but I know it's what he wanted..." He said softly.

Y/n sighed lightly and grabbed his hands "let's just get out of this au..." They said making Nathaniel nod lightly. Y/n looked at Error and lightly nodded their skull. Error lightly nodded back and made a portal back to the castle.

Y/n and Nathaniel walked through the portal as Error summoned the codes to the au and destroyed it. The au began to fade away as Error jumped into the portal and shut it behind him.