Shi looked at the spirit, glaring, Shi: "I swear to everything that's holy; I will set you on fire", Kai: "my, my, such attitude coming from you". The robot and Alphys just looked at Shi confused on who they were talking to, Shi: "will you shut up, you sarcastic ball of energy?!", Kai: "will you learn to not be an overly trusting idiot?".
𝐩𝐢𝐧𝐠, Shi's eyes changed into hot pink and pink with black eye whites, as Kai had taken control, Shi: "well that idiot is out of the way now... where was I; oh yea, you two are next". the robot spoke, "that can't be human, Alphys darling", Alphys: "I-I was just thinking t-that....". Mettaton flipped his switch that was on his back and changed into humanoid form, he has black hair with a long fringe that seems to cover his right eye, pale "skin" and visible metal segments below and above his left eye, He has a pink chest piece, a narrow metallic waist with a box contraption, and black shoulder pads above his segmented arms, which end in gloves. The chest piece has what appear to be a speaker and some knob or gauge, while the waist has two parts that seem to act as a locking mechanism that holds his heart-shaped core, His long black-clad legs end in pink high-heeled boots. Shi grabbed their dagger out and lunged at Alphys, swinging the dagger at her. Mettaton stepped in front of Alphys and took the dagger across his left arm, cutting it off, leaking oil from where his arm was severed.
Mettaton changed his right forearm into a cannon, then he shot at Shi, who moved to the side, dodging the blast. Shi: "hahah!", Shi swung their dagger at Mettaton and tore the cannon off. Shi swung their dagger at Mettaton again and slashing it across their chest. Mettaton glows a bit, then turns to dust, Shi: "one down, one to go". Shi looked at Alphys, who was cowering in a corner, watching the whole scene, Alphys: "w-wait a second please". Shi ran at Alphys and swung their dagger, across her chest, then Alphys glowed a bit and turned to dust. 𝐩𝐢𝐧𝐠, Shi's eyes changed back, and the spirit appeared beside their head again, Shi: "you're a real piece of work, Kai...", they said in an irritated tone, Kai: "I'm glad you think so, idiot", Shi: "you don't understand sarcasm, do you?", Kai: "I understand sarcasm perfectly well, moron; now get going we're almost out of here". Shi: "alright alright, geez", Shi starts walking out of the lab with the spirit following beside their head.
--after a while of walking
Shi and the spirit stopped in front of a big apartment looking building with a sign "MTT" on top of the front doors. Kai: "just through here, we're almost home; go idiot", Shi: "why should I, there's nothing good in going back home to the surface...", they messed with their paws as they hesitated to walk in the doors. Kai: "go through the front doors now, Shi!", Shi: "fine, stop nagging me...", Shi then walked through the front doors of the building. the inside of the building is empty except for one cat looking being. Shi: "where is everyone...?", Kai: "we chased them away, what else?", Shi: "you mean you chased them away...", Kai: "same thing".
Shi flicked their tail and walked over to the elevator in the lobby of the building, then they pressed the button. Shi: "it's broken... now what?", they looked at the spirit, Kai: "find another way out of here, idiot", Shi: "boo hoo, why don't you ever point out anything?". Shi looked at the cat figure then looked to the left a bit, Shi: "oh.... it's there". Shi then walked to the path to the left of the cat figure sitting at a counter, Kai: "finally you found an exit", Shi: "shut up, Kai".
as they kept walking the room seemed to fade to blue, Shi: "huh, why does everything look blue now?", Kai: "because you're getting closer to the end of this awful place". Shi: "what is this place called though...?", Kai: "it's the core, if you were me and gone through all this already; you would know", Shi: "you've gone through this place before already?", Kai: "I have, but that's not important; let's get out of here now, idiot". Shi: "then why don't you tell me about it; we have time to kill anyways", Kai: "fine, I was a human who fell down here before you did", Kai: "my soul trait was kindness and I went through the underground here, till I reached the judgement hall". Kai: "this was before the comedian made his promise to Toriel, evidently I was killed but I'm now a spirit seeking vengeance for all who wronged me", Shi looked at the spirit wide-eyed, Shi: "holy, well that was something...", Kai: "that comedian won't be kind to you, I've been through his attacks".
Shi and the spirit continued walking through the core, Shi: "you were completely human?", Kai: "yes, I was but now I'm stuck as a spirit attached to you", Shi: "where's your soul now... assuming you're without a soul", Kai: "they keep my soul so they can break the barrier with seven human souls". Shi: "alright, well... why did you fall down the hole in the first place?", Kai: "I was playing in the forest with my brother and fell into the hole because I wasn't paying attention", Shi: "oh... uhm ok.... so, you're the sixth soul they collected...?", Kai: "yes, I was".
Shi and Kai reached a yellow-hued room adorned with windows bearing the Delta Rune, white light shines through the mosaic windows, and Greek pillars border the corridor in both the foreground and background. Shi: "well, is this the judgement hall you were talking about...?", Kai: "yes, now be careful". Shi walked to the middle of the corridor, and stopped as they heard footsteps walking towards them. Shi: "welp, I'm so dead...", Kai: "you're in for a lot of fun", the spirit laughed.
YOU ARE READING
A Corrupt Mercy Soul (Undertale Au)
Fantasy-Author's note: Shi was originally just a design concept till i fell back into the Undertale fandom, now i wanted to turn them into something more- Shi is half human, half monster, with their soul breaking from the magic they wield being stronger th...
