undertale · fanon · last breath sans · sans · skeleton · grief · revenge · magic user · boss fight · dark fantasy
The afternoon sky is a perfect, cloudless blue. Birdsong trills through the air, and wildflowers sway gently in the breeze. Then the mood fractures. Sans takes a step forward, his eye sockets alight with a cold, resolved glow. The serene atmosphere curdles into something heavy and sharp with impending violence. He settles into a battle stance, a stark silhouette against the peaceful backdrop, prepared to end this.