Fantasy Emperor Summons Gods and Demons

Ye Yun woke up and found that he had become a down-and-out third prince who was sent to the frontier. There were dangers ahead and pursuers behind him, but fortunately, the summoning system of gods and demons in the sky had awakened. Summon the general and the devil comes to the world! Summon the undead army and slaughter the heavens! When one day the immortals and demons came, massacring mortals to refine treasures, their ferocious power was overwhelming until they came to Ye Yun's country...