Who Says Eunuchs Can't Be Virile? Empress, Take This!

He wakes up as a prince in a kingdom on the verge of collapse, only to accidentally get captured and dragged into the palace to become a eunuch?

Luckily, he runs into an old acquaintance, or he'd have lost his manhood for good!

Then he unexpectedly awakens the Deduction System! Whenever he encounters a problem, the System runs countless simulations until it finds a solution!

From then on, an all-purpose chief eunuch, equally skilled in literature and martial arts, rises to fame!

He joins forces with a valiant woman general, the best of her kind, to slaughter the enemy!

Five beautiful princesses follow him around, each vying for his favor?

A female physician goes to great lengths to get close to him and learn medicine from him...

The all-powerful empress both hates and loves him!

In the great war against an enemy kingdom, countless simulations finally let him devise fully automatic firearms!

"Gatling squad! Get in there!"

Only then does the empress come to her senses: "You were a man all along!"

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