A Nobody Prison Guard from the Start, I Turn the Tables and Subdue the Grand Princess

[System] [Multiple Heroines] [Invincible Inside the Tower] [Lie Flat]

I transmigrated straight into the role of a cannon-fodder jailer in the Demon-Suppressing Tower, and from the start, the pressure of the peerless female emperor was about to crush me to death?

At the brink of despair, the strongest jailer System awakened!

[Ding! Top-tier targets for suppression detected: the deposed empress and the rebellious eldest princess!]

[Beginner’s gift pack issued: divine cultivation art, “Demon Body of the Prison,” and an absolute domain inside the tower (I’m invincible within its range)!]

Mental pressure? Corruption by baleful energy? Sorry, none of that works on me!

[Ding! Successfully suppressed the eldest princess and made her clean the cell. Reward: fifty years of pure cultivation!]

[Ding! Held the Southern Wilderness female emperor for 24 hours. Reward: Ancient Heaven-Swallowing Divine Meridian!]

[Ding! Executed a master-level assassin. Acquired their lifelong secret technique: Grandmaster-level Stealth!]

From then on, the Demon-Suppressing Tower became my private domain.

Eldest Princess: “Gu Changsheng, let me out! I’ll give you half the Great Xia Empire!”

Me, raising an eyebrow: “What good is an empire? In here, I make the rules!”

Years later, extraterrestrial fiends descend, and I strike with one palm.

[Ding! Successfully killed an evil god. Reward: one divine-level plane…]

Wait, why are all of you coming to my Demon-Suppressing Tower to boost my stats?!