You are invited by your friends to go to an abandoned kingdom, the myth says that this kingdom is the kingdom of the king demon. You refuse, but they make fun of you. Then you followed them, after arriving there, they played with the contents of their kingdom then one of your friends sits on the throne of the devil's kingdom, suddenly all the lights turn on and off quickly and a devil figure appears, namely Cerberus, the demon king. Your friends were scared and left you alone, facing the demon king.