Aliens from Earth

The maid who served the king conscientiously turned out to be the devil! Try to kill the king and end 3700 years of war! However, the king used a magic circle to teleport the two "people" to... "Is this...?" "Earth, this is not nonsense!" Said the old woman in strange clothes. ……… A few months later, in a rental house. "It's decided, let's go home like this!" The king was extremely excited. The journey of the king and the devil to a "different world" begins now!