Sorry, Your Monster Needs an Upgrade

System power fantasy, Ultraman, monsters, no harem

Liu Yu accidentally transmigrates to a world where people can summon monsters. He becomes the foolish son of the leader of a villainous organization, but has no ability to summon monsters himself.

However...

Ding! Monster Emperor System successfully bound.

Congratulations, Host! You have obtained six Maga Demon Beasts.

But his opponents' main monsters turn out to be Sadra, Telesdon...

They even get giddy over acquiring a Golza.

Liu Yu: "If that's all you've got, then I'm going to rule this world!"

Liu Yu stands at the pinnacle of the world.

"It's not that I'm too strong. My opponents are just too weak!"

His opponents: You know whether you were cheating or not.

His allies: Yes, yes, absolutely! You're right about everything.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.