The Brave You said give me half of world

The Brave You said give me half of world is an adventure game with RPG elements, in which the player will fight with the lord of darkness himself. According to the plot, the main character and the devil have already met, and after the victory of the protagonist, the demon promised him half the world for clemency. Six months later, the devil changed his mind, and now the character will have to put the devil back in his place. To do this, he goes to the castle of his opponent, where he will have to make his way through the resistance of the villain's minions to the main hall and destroy the darkness.