"Promise me what?" Chase Lu asked.

"I promise to surrender to you." The Lord of Black Prison Mountain gritted his teeth and said.

"Since you have surrendered to me, why do you dare to call yourself me? I see that you are clearly unwilling." Lu Chen shouted coldly.

"I pay my respects to the master." The master of Black Prison Mountain sighed and said with a bitter look on his face.

"Okay, hahaha, Lord of Black Prison Mountain, I am very happy that you are willing to surrender to me, but I am still a little worried. In this way, you will make a demon oath that you will never betray me forever." Lu Chen laughed.

"The Heavenly Demon's Oath?" The Lord of Black Prison Mountain's face changed when he heard this. The Heavenly Demon's Oath is the most stringent oath of the Heavenly Demon clan. Once it is made, even the ancestors and immortals cannot break it, otherwise they will be punished by God and die.

It turned out that he just wanted to compromise with Chase Chase first, and then look for an opportunity to escape, but he didn't expect that Chase Chase wouldn't give him this chance at all.

"What, you don't want to?" Lu Chen asked coldly.

"I obey." The Lord of Black Prison Mountain gritted his teeth, knowing that he had no choice now but to make the Demonic Oath and completely surrender to Lu Chen.

"Okay, Lord of the Black Prison Mountain, if you surrender to me, I will not treat you badly." Lu Chen laughed, and with a thought, the soul seal of the universe flew away from the Lord of the Black Prison Mountain.

"Thank you, Master."
Chapter completed!