I'm The Only Granddaughter Of The Strongest Duke Novel

Day after day, my singular mission remains unchanged: sabotaging my father's business is the only way he survives.

A weaponsmith whose mastery bound him to a warrior's party—that devotion led to his destruction in the future I witnessed. Death claimed him for his own talents. Faced with this horrifying revelation, I made an extraordinary choice: destroy his livelihood to save his life.

"This sword can't even cut a potato!"
"The ham won't slice cleanly!"
"How could something forged by Sir Royce be this worthless?"

My sabotage succeeded beyond measure. Warriors stopped appearing at his door. Commissions ceased. His reputation disintegrated. Where customers once flocked, now only silence remained—and my father lived. That singular victory justified every lie.

I betrayed him at every opportunity, denying our connection to anyone who asked.
"Nial Royce? I've never heard of him. It's just my mother and me."

I believed happiness had finally arrived. Father breathing, our future bright, the circle closing...

Until everything shattered.

"Tell me, child—what is your age?"

The empire's most powerful duke materialized before me with an impossible declaration: I was his granddaughter.

Nothing made sense. How was this possible? What terrible fate had I overlooked?