Before the story starts, remember that I use names to distinguish characters and their own universe. UT for Undertale, US for Underswap and SS for Storyshift.
e.g SSChara- Chara from the Storyshift universe.
Undertale @ Toby Fox
Underswap @ PopcornPr1nce
Storyshift @ ut-storyshift (Tumblr) VoltraTheLively
--I--
Sans felt sweat beading down his forehead as he looked at the human angrily. Heh, he always wondered why he did that: Were skeletons not to sweat? Ah. It didn't matter.
He was facing the kid for...good lords, he stopped counting.
His movements, quick, precise and lethal changed after the initial battles. He became more robotic in his movements, still marking the precision and lethality required to kill but doing so not to stop the human with a burning passion...but to feebly hope the human will just stop. Yet, what he didn't know was that far and close by at the same time, two others were doing the same.
(In Underswap)
Papyrus looked at the human with a bored expression. He continued smoking, but the taste in his mouth was not giving him the addict the pleasure it used to do. Instead, he spat out the cigaratte in disgust, and looked at the human standing before him, Chara, with a look of utter hatred."Human...nyeh heh...I know that you're not the one causing this right, ...Chara?"
Despite the grin the human gave him, he could hear muffled sobs from the mouth of Chara. Deep down, Papyrus knew that the one controlling the kid was Frisk, the first human who had been corrupted after Chara killed their first monster. The human looked up with such a wide grin only a demon could possess, No Other Human Could Do That. Papyrus felt himself reset into the hall again, glancing up to see that damned knife and sick grin. He got up, ready to perhaps try his monologue for one last time.
(In Storyshift)
Chara just kept slashing, bearing disregard to her multiple wounds on her body and her dried up tears: She stopped crying long ago.
Chara will sit up in the judgement hall everytime she killed the human. Her movements had grown more experimental with the resets: She begun to release her inner demon slowly, as she tried many tricks and ghastly deals to kill Frisk: Multiple stabs, screaming and slow deaths, and the blood. Something she never relished, for a long time. The "human" had killed her brother, the one who found her and gave her the love and guidance she needed. She was determined to make the human die as the human reappeared in the hall.
"It's a beautiful day outside"
3 echoes...
"Birds are singing, flowers are blooming..."
Without knowing it, their souls started resonating.
"On days like this, kids like you..."
Their souls resonated in power with the thougut of the humans in their universes, that power filled them with the anger, the desire to end it all.
The determination.
"Should be burning in hell." In that moment, three echoes resonated.
Two Frisk and one Chara glanced at each other quizically, and the realisation finally burnt into them as the three: Undertale Sans, Underswap Papyrus and Storyshift Chara faced them with a righteous anger. For the first time, the two Frisks and Chara felt fear deep in their hearts as they came to a realisation.
The bad time had truly started
