The Invincible Eighth Prince: I Appoint You Emperor Emeritus

Yi Yun transmigrates as the eighth prince of the Great Xuan Dynasty and is dragged into the succession struggle by a plot against him from the start.

Since I'm forced into the game, I might as well take the initiative!

I'll start by marrying the Northern Frontier Marquis's only daughter, Dugu Yaojin, the most beautiful woman in the capital!

Years later,

Emperor: Eighth Brother, I bestow upon you the title of Grand General of Heavenly Strategy!

Eighth Brother: No need! You're thinking too small. I'll make you the Retired Emperor!

In the bonus chapters, the other nations say: We are willing to become Your Majesty's vassal states and pay tribute every month!

Eighth Brother: No need! You're thinking too small. I'll appoint you provincial governors!