System Upgrade?

"Of course, I will try my best in stopping the upcoming evil invasion."

For Lucas, fighting the evil race is the quickest way to upgrade his status from Duke grade to Sovereign grade. So, of course, Lucas decided to take the Heavens' offer without any hesitation.

'Not only can I become the True King of the Barren firmament but I will gain the equivalent status of the King of a fifth-ranked firmament.'

Lucas felt it would be enough power for him to live a peaceful life in this world. Once he accomplishes his goals like saving his little brother and taking revenge on the Liontalon family, he could relax and take his own time to increase his strength.

'I wonder whether I got any knowledge about the mysterious organization.'

Since all he needed to do was think, Lucas thought about the organization that kidnapped his little brother.

'Huh? What the…all I got is useless information.'