It wasn't anything new. Having fallen into the underground, you'd decide to obliterate anyone or anything that came in your way. Yet, for some reason, something made you spare Asgore. Having aborted ruthless, everyone was still quite afraid of your presence since nothing would change those lives taken.
You managed to travel across the Starlight Aisles relatively fine, as you were still alive to say the least. That led you to find a trail leading to a battle area. In every other run, Crossbones would come face to face with you. So, it was sure to happen h-
hm...
i'm not sure how to judge the way you walked up to me.
suffice to say, that walk spells trouble.
...It's Sans. What made him give up the Crossbones persona? Nonetheless, fight ensued. Your SOUL was now blue.