A humorous journey where Chara speaks to Frisk in their head, trying to push them to kill, but the pacifist in Frisk is far too strong, and they simply go through the events of the Pacifist and True Pacifist route having pleasant conversation and becoming friends with the psychopath in their head, trying to bring them around to their way of thinking. Chara in italics to help flow.
I always liked the idea that the Nightmare Heart poached The Knight after the Dream No More ending. So I wrote this up, and I'm pretty happy with it. I hope you will be too.