After absorbing the souls of frisk and chara. sans setup a graveyard for the entire underground. He took papyrus's scarf and wrapped it on the makeshift tombstone of papyrus. He felt like he out of everyone didn't deserve to have it. And it seems the version of frisk who decided to watch him wanted to wait for the graveyard to have setup before starting a conversation. It was about an offer to join a group that protects the balance of the multiverse. In all honesty it was kind of suspicious because of how soon it was brought up (not to mention she was watching me from somewhere outside the universe). It didn't help much that despite being a spirit she still resembled a human (I mean not all humans are bad. But at the same time I haven't exactly had many good experiences with humans, though I'd eventually deal with that issue later). Not long after thinking about that I noticed something she was probably keeping hidden. This version of frisk is very faintly emitting an aura only a Yandere could have (it was just then that I realized. From her perspective frisk has been kind and patient with me. and with an aura of a Yandere. it became very obvious what this could mean, and if I was right I can't risk checking if I'm right without risking my life in the future). Then she mentioned that the group helps other people in the group grow more powerful and they protect each other

Given the previous information and that she's a Yandere (not to mention the deal itself). It would require being an idiot to refuse. Though it did make me get an odd feeling that I'd need her help at some point to fix the universe to be how I wanted. After I accepted the deal we said our goodbyes for the time being and she mentioned she'd return the next time I need her help. Then with a snap of her finger she was gone. Now I had much to consider and the time available to do so. Starting with the obvious. It seems I now have a protector in the form of a Yandere version of frisk that's of a higher dimension. Next is that a multiverse exists which is proven by the existence of said version of frisk. After that it seems I will gain allys which in all honesty will be helpful someday, lastly I'll need to find a way to bring everyone back to life but prevent the cycle of genocide from returning and I'd prefer to keep my newly acquired power if possible