After fallen child named Frisk left the underground leaving all monsterkind in underground, six humans souls disappeared and King ASGORE died. A Queen returned and enstated a new policy that every human who will fall to underground will be treated not as enemy but as a friend.

But let's focus on our experiment shall we? You... Or more like your vessel fall to the underground. I want you to give it name and kind of soul before we will begin. So... What will be their name?