Super God Academy: I'm a Modern Mage, a Prince of the Universe

A goofy story, slightly overpowered, no System, totally unhinged, and the Void isn't the strongest.

When the protagonist picks up the royal sword that represents the Angel Civilization, he says, “By Heaven's command, may this realm endure forever. Don't worry, I'll return it myself. What? You don't believe me? A ruler never goes back on his word!”

When he's strong enough to visit the River of Death and brag to Karl: “Karl, this really has nothing to do with me. I only took apart two parts. You can't blame me if it broke!”

When he meets an angry, tsundere He Xi: “He Xi, if you can't fix this thing, how about letting me try?”

When he goes to the Fiery Sun as a blond heartthrob: “Rena, your place is... magnificent! Both wealthy and shabby.”

When he runs into Morgana: “Liang Bing, come check out some evil!”

“The Void? Just a bunch of weaklings with failing kidneys. What's there to fear? Charge with me! Behold my divine might, invincible and unstoppable!”

“Ha ha ha ha! To battle Heaven, contend with Earth, and scheme against mankind, what fun! Ha ha ha ha... my foot! Pah! I'll smash your precious wares!”