After possessing the body of the villainous Black Dragon, who once tortured and was later executed by the protagonist Theodore,

Sian has lived for 200 years and completely forgotten the original plot.

But fate catches up when he encounters the protagonist again—

deep in the mountains, on the brink of death.

“P…please save me… I beg you…”

“Alright. I’ll… help you.”

Maybe if he takes care of the boy and nurses him back to health, he can avoid his death flag this time?

So, he decides to become Theodore’s mentor and smooth out his path in life.

That was the plan…until Sian finds himself completely charmed by his adorable disciple.

And Theodore seems to adore him right back.

“I like you, Master. I don’t want anyone else. I want to marry you.”

“Sure, sure. Then let’s get married when you’re older.”

To prepare him for the future, Sian teaches him everything—

raising him into an overpowered genius.

When the time comes for the original story’s heroine to appear, Sian sends his grown disciple down the mountain.

Five years later, Theodore has become the Emperor of the Grand Empire.

Everything seems to have gone just as Sian expected… until—

“You promised to marry me. It’s time to keep your word.”

…Wait.

Why is he proposing to me?!