After their recent failures of trying to destroy the pure kingdom. An army, known as the demon army, tries to build up their army again. But a flaw happens when they combined two demons, and they create Scarlet. The only demon that does not want war for evils good. After the demon king considers this to be a flaw and a possible threat to them. She is forced to flee after being hunted down. After successfully escaping, she finds a little friend that resembles a pony. They must now defend themselves from the wrath of the demon king.

MLP & Cartoon Wars crossover.