Job Transfer for All: Succubus, I Want You to Help Me Practice.

The game comes to reality, monsters and demons are raging! Everyone can change jobs when they are eighteen years old and have the opportunity to become a strong person. Su Yang changed his profession to the top hidden professional demon envoy. The demon envoy's output is powerful, but he has to find a demon and sign a contract to display his strength. But demons are one of the most powerful races in the world. To sign a contract with demons, you must pay a huge price, and demons do not exist in the world. Therefore, it is considered a useless profession. Fortunately, Su Yang also awakened the system. At the beginning, I got the SSS talent and found the first demon succubus queen. After a "battle" with her, I was forcefully drained by her, but I gained her power and forcibly signed a contract with her. Later, Diavolo, the King of Fear, Baal, the Demon of Destruction, Mephisto, the King of Hatred, and Nevin Moore, the Shadow Demon... Many years later, the huge demonic power in Su Yang's body caused countless demons to kneel down and beg for mercy. Seeing countless demon kings with names in hell kneel down in front of Su Yang, the world trembled. Who on earth said that being a devil is a useless profession? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.