The Fallen Story [Undertale AU]

Ch5 : The End?

Alphys returned back to Undynes home. Broken in tears, she walked in. She saw everyone, except Sans.

"Wheres Sans..?"

Grillby pointed to a room, but shook his head at Alphys. She rushed over to the room, looking for him. As she opened the door she found him. He was sitting on a couch holding the locket. It was open and he was looking at the picture. Tears flooding onto the locket.

"Why couldn't I save you..."

"S-Sans.."

He closed the locket and wipped his face. "H-Hey Alph, your back already? Wheres Undyne?"

Alphys starred, she looked away and tears fell from her eyes.

"T-They got her.. T-There was b-b-blood everywhere.. B-B-Broken A-Armor.. And her s-soul.. Was t-there.. They must've.. S-S-S-Slaughtered h-her.."

Sans pounded his hand on the desk and put his hands over his face.

"WHY.. FIRST FRISK.. THEN PAP.. THEN MYNX.. NOW UNDYNE.. WITHOUT FRISK WE CAN'T EVEN FUCKING RESET.. I BET I'M NEXT."

Alphys panicked, "Sans please calm.-"

He interupted her screaming. "I WISH IT WERE ME. I WISH THIS COULD BE RESET GOD DAMNIT.."

He broke down crying, "I can't fuckin do this.."

"Unless theres 9 Seishin.. They can't do any true harm to the world.."

All of a sudden alarms on Alphys' phone went off, camera alarms in her lab.

"Alph whats the problem?!"

"SANS THEY'RE STEALING MYNX'S BODY!"

Sans teleported to the lab, without even thinking. Eight, eight Seishin were there. He had her soul, the only thing they needed to make her a ninth Seishin. And they knew that just as much as he did. He tried to teleport, but couldn't.

"W-Why can't I..?!"

Corrupted Patience stepped forward, "We've made it so your stuck here, no one can come in or LEAVE."

Corrupted Patience then extended her hand at Sans. Blue spears encased him.

"Move and you DIE, Care to do the honors Justice?~"

Corrupted Justice pulled out a gun, and pointed it at Sans.

"With PLEASURE."

As he fired it, Sans dodged it, but due to the spears Mynx's soul stayed and was shot. He starred as Corrupted Kindness placed a box around him encasing him. He pounded on the box trying to break it. Kemeno then walked up to it. While starring at him she turned Sosa into a spear on her hand. She sliced it in half, forcing him to watch. But it didnt break, it just turned black. She then said something. It sounded of giberish, yet it was the Seishin chant. Sans knew that perfectly well. He tried with all his might the break the box but failed. When Kemeno stopped the soul lit up. It turned a dark greyish purple. White eyes glowed on the soul. Dripping particles formed in the shape of teeth. Animalism glitched, turning to Abuse. Chara walked over holding the soul, then walking over to Mynx. A beam flashed brightly. The soul was gone, and Mynx was sitting up. Her eyes were white like before, and she starred directly at Sans. Sans tried one last time to teleport, and was able to.

Chara filled with rage screamed at Corrupted Patience.

"I thought he couldn't escape!!"

She looked back screaming, " I did too! Someone else helped him!"

Mynx sat up and spoke, "We'll get him next time. But now.. We must begin our plan."

Sans teleported back to Undynes house.

"SANS!"

He stood there, mortified. He couldn't breathe, he was almost crying.

"Sans whats wrong..?"

She looked at Alphys, then broke into tears.

"They made Mynx a Seishin.."

Alphys then teared up, "N-No.."

Thats when they felt the ground shake. A crack through the ground split between them.

Alphys panicked, "WHAT THE HELL?!"

Sans looked at the castle from outside.

"They're doing it.. They have 9 Seishin! Alphys we have to go and stop them!!"

Alphys sighed, "Now or Never.."

Sans got the others and Alphys, as well as Flowey and teleported to the castle. The only monsters left. Everyone else had been slaughtered for power.

Sans looked around worried. "Its another ambush I can tell.."

Alphys looked around too, she created a bolt of lightning spear.

"I promised to avenge Undyne, will all my might. And that is what I will do."

Grillby and the Shopkeeper looked around. Getting ready to attack at any moment. Without notice the floor beneath the two glowed. They looked down, but it was too late. It glowed a bright blue and massive spike arouse. Stabbed the two and immediately killing them. It was up to Alphys, Sans and Flowey now.

"Were so close to ending this. This is so fun, soon this world will be NOTHING." Kemeno laughed.

Sans fired bones at her and Alphys shot lightning. Flowey attempted to grab her with vines, but she blocked it all.

Corrupt Kindness put a box around Flowey, he then laughed as the box became hotter. Flowey panicked as one of his leaves set flame. Alphys and Sans watched helplessly as the Flower burned alive. He was nothing more then ash now.

"Tick tock. Lives running out."

Chara stepped into place as the human souls created seperate rooms for the two monsters. Chara shapeshifted into Undyne.

"Alphys its me, I'm alive!"

Alphys starred, almost crying. "U-Undyne..?"

Chara smirked, coming out as a smile and opened her arms. "Give me a hug!"

Alphys started crying running toward her arms embraced.

"Fool."

Speared appeared behind her stabbing Alphys into Charas grasp. Spears appeared from beneath destroying her.

"I never cared."

Alphys looked at her as she fell backward, clutching Undynes soul as it shattered with hers.

"I-I.. L-L..Love you.. U-Undyne.. I.. I'm sorry.."

She faded to Dust as it was Sans, vs 9 Seishin.

But one Seishin wanted to finish him alone. Mynx.

Sans couldn't battle her, he had no intention too. So he starred at her, trying to talk to her. She listened to nothing, firing attack after attack at him. Sans dodged each, but getting more tired after each. He then had an idea. The Locket. He teleported to her and showed her the locket. She raised her sword about to finish him, but even as a Seishin, her heart didn't let her. She just starred frozen.

Chara smiled, "I knew this would happen.. That fool is weak, our plan is successful. Kill them."

As Corrupt Bravery was about to kill Sans, Mynx stood infront of him. They both took the hit and collapsed. Sans starred and Mynx and she starred at him. The extended their hands and held their hands together.

"Sans.."

He wheezed out, "Y-Yeah Mynx..?"

"K-Knock knock.."

"Whos there..?"

"S-Sunshine.."

"S-Sunshine.. W-Who..?

"Y-You.. You.. Are my.. S-Sunshine.."

He laughed and weakly crawled over to her and hugged her, "I love you Mynx.."

She choked out her last words. "I love you too Sans.."

The two souls broke. The Seishin had won, or did they.