Frisk looked him in the eye, searching his face for a moment before meeting his gaze. She hesitated. She didn't know why, but she hesitated. She had made this exact promise before, the promise that there would be no more resets. No more saves. No more reloads. No more different timelines. And she always broke it.
 
[i]Always[/i].

Could she really promise it again? It didn't mean much before, so why would now be any different? She had done well to not reload any saves, but the resets...Sometimes she got so scared. Sometimes she made such big mistakes. Sometimes she just...got bored. She couldn't trust herself.

But sitting there, looking at Sans, Frisk knew she had to try harder. If he could continue on, despite being just a pawn in whatever game this was, then so could she. 

Frisk smiled warmly and nodded. "Yes," she whispered. She leaned forward and pressed her forehead to Sans'. "I promise, Sans. I promise with all my heart and soul."