(Undertale X Rise of the Guardians Crossover)
Summary: Sans, after 1367 resets, had enough. The kid beat him once again in the genocide route. He became dust with the slash of the kiddo, which he found out to be Chara. It was the end for him, for this timeline. Everything would reset and replay again.
But it didn't. He awoke as Jack Frost.
The knife struck against his ribs, the ketchup within his jacket drips down, the kid had gotten him once again. "Welp. You got me again. How long are you going to this huh, kid?"
The skeleton didn't even bother looking at the kid's eyes, they just burned with red. "Sans, you know I'm NEVER going to be satisfied. It's so hard to kill you, might as well kill you again. And again." The kid traced the sharp end of the knife with their finger, drawing blood, dripping down.
"Shut up. I'm going to Grillbys, I'll kill you the next time I see you." Sans, the skeleton, limped past the kid, like he did for the 79th time. He was sick of the kid. Maybe he should try killing him on the spot. He looked up, only to see the smiling face of his dear brother, Papyrus.
"Papyrus, do you want anything?" Sans felt himself turn to dust. He could tell that the kid already left, ready to kill Asgore and that flower. He was tired. It's been the 1367th reset, how many more until the kid is satisfied? He closed his eye sockets, ready to feel the soft bed in his room, the place he finds himself at the start of every reset.
But he didn't.
He felt like he was being erupted from a cold lake. Water and ice surround him, it was way too cold. He felt his teeth chattering. He opened his eyes to a beautiful sight, the moon. Snowdin? How did he even get here? It was snowing, trees, but he never saw a place like this in Snowdin. He seems to be floating, floating up. The moon shined brightly in his face. He reached out to the moon,
Only to find a pale human arm. "W-What?" He grabbed his arm with his other arm, shaking in realization. Was he a human? No this was definitely not human. It's too pale to be a human. He looked around and realized this was definitely not Snowdin, was this the surface? He was brought down to the frozen lake beneath. Why was he here on a frozen lake? What was happening?
All these questions ring in his head. He walked slowly and as he did, he took in the sight of his outfit. A brown cloth? Some pants, he wasn't into this fashion. He looked back at the frozen lake, he felt like there was some weird connection with it, only to find a weird looking stick laying on top of the snow surrounding the lake. It was like a form of a question mark, the dot was like a stick. It was interesting to say the least.
"Huh" This was definitely not his voice either. This was a completely different person. He sounded happy? Like a kid? But he seemed to be a young adult? He doesn't really understand the human anatomy.
He approached the stick, curiously, he grabbed the stick and instantly, he felt an out-of-control energy bursting from the stick. "What the fuc-" Just as it occurred, it stopped. "Huh, I don't think humans can do this." Frost was covering the stick. Frost? Winter frost? Ice? What was happening? He swung the stick, realizing that it summoned frost everywhere.
He felt like he had fun, something he hadn't had in a while. He ran around in fascination. This was amazing! But why was he here? This never happened. Definitely not in any of the resets. Just saying the word resets gave him a chill, which was funny because he was in a cold area and with that word, he realized that he could feel.
Just as he was hoping for some answers to his question, a voice spoke to him. The moon or should I say, Manny, the Man in the Moon. The moon, the first thing he saw out of the underground.
'Child, you are Jack Frost, a winter sprit, you control winter and wind, making children have fun.'
Just as he was about to ask more, a familiar voice immediately replaced the other voice
'Sans! I know that's you, Chara did something to the system and somehow this happened. Just go with the flow, if you mess something up, Chara is going to shut down this world and go to another one! I'm doing my best to take control over Chara, please be safe.'
Frisk.
A/N: I had the idea of thinking that Jack Frost was somewhat like Sans, so I decided to do a crossover with the two. I hope yall enjoy, I'm not the best writer ya know. This is kind of a prologue, an idea so far, so bear with this short introduction. Thank you for reading!