Manga My Lord of the Sea, Please Do Your Work!

The Lord of The Sea — riding above the waves, calling upon the life of the seven seas, and even the beasts of the abyss listens to thy callings. As the acting Lord of the Lord of the Sea and possessing godly powers, I, Hai Ming, have to infiltrate the Magic Academy while pretending to be a normal student and doing ‘espionage’ work?? How low! But to save the world of magic, we have to battle against the evil demons! And I can only work hard! My Lord of the Sea, please do your work!