The Villainous Hero that Kept the Villain as a Pet so he can Live in Luxury

There's a story about a young prince that was treated like trash by the people around him.

However, like most of these stories, he ends up having an op power and gets revenge on all the people that wronged him, while also helping other people.

However, in the process of doing all that, he kept his identity a secret so he doesn't get unwanted attention. It was the type of story where you would get frustrated about how the main character kept getting his credit stolen by side characters.

However, he didn't mind as he only wanted to help people, because he was genuinely kind at heart.

The Villain, on the other hand, was an evil person.

He was a tyrannical person that had even forced the emperor to give him a high ranking title as a duke. He ran a mercenary company that was known to be ruthless, but they did complete all their jobs as they were asked to.

The Villain was known to be the owner of the black void sword, which was known to be the sword of the fallen demon king. With it, he became one of the most powerful men on the continent, and nobody dared to cross him.

However, the prince's path as the righteous hero meant that he would always clash with the villain of the story.

...

"Ah... fuck..."

It seems I was reincarnated as that prince that was labeled trash after I accidentally saved a kid from a truck.

I don't really want to do any of that justice crap, nor do I want to keep being treated like shit.

Not to mention, the whole secret identity part of that novel was the worst. There's no way I'm gonna hide the fact that I'm op.

...

Thus, our main character, Takagi Inari, reincarnated into the young prince, Takagi Inari. However, can someone as shameless as him even count as the hero of the story?

Wait.

Too late.

He's already put a collar on the original Villain to keep as a pet.

Seeing the two, who's even the real villain anymore...

(I don't do extra extra checks for this series. So there might be misspellings or grammar issues for this series)