Undertale: The Altered Timeline (ATL!Sans)

(UPDATE 4/11/24: (ON HOLD FOR A WHILE STILL, WILL CONTINUE THE STORY IN NEAR MONTHS) (EVERY ART FROM THIS STORY IS MADE BY ME MIGHT CONTAIN SOME BLOOD) (After a glitched reset, Chara and Frisk left the ruins in search of redemption, prompting ATL Sans to initially guard himself against their past actions. However, as he observed their change of heart, ATL Sans gradually lowered his defenses and reverted to his laid-back nature. Over time, he began to express his true emotions and feelings towards Chara, sensing the possibility of a happier life untethered by their haunting pasts. Meanwhile, Frisk lost their reset powers, which were transferred to ATL Sans. On his birthday, while strolling through Waterfall, Gaster delivered a chilling revelation to ATL Sans-foretelling the impending catastrophic event that would shatter their timeline. Gaster informed him that he could only save himself using his newfound powers.

As the inevitable darkness approached, Chara, Sans, and Frisk shared a poignant final hug, cementing their bond. Sans and Chara, in a tender moment, exchanged a last kiss, knowing that their time was running out. The reality they knew faded away, taking with it all their friends, both monsters and humans. They found themselves in a dark hallway with glowing fissured white cracks, offering glimpses into other dimensions and alternate universes. In this uncertain void, they faced the unknown, armed with the determination to navigate whatever lay ahead.