K_U_R_O_C_A_T
The Kingdom of Monsters sealed beneath Mt. Ebbott is a kingdom divided.
After the deaths of the Royal Children and Asgore's declaration of war, the order was given that any humans who fall would be killed and their souls used to break the barrier and for a time, the citizens of the kingdom were content to wait for all seven souls that were needed.
It wasn't until many years later after the next human's fall and subsequent death that many monsters spoke out against the King's decree and insisted that the human soul should be absorbed and used to free the kingdom. It wasn't long before civil war broke out amongst the people of the Underground.
The group that wanted to use the soul eventually lost the battle and were forced to the lands far from the Capital, the whole of these places serving as a prison for the defeated monsters. Waterfall and Snowdin have long since been forsaken, their residents a mix of dissenters and criminals sent away by the Capital.
When Sans and his brother receive information regarding strange incidents occurring in town over the last few weeks, their investigation leads them to discover something that will shake the whole kingdom to it's core.