A gender-swapped world.
For instance, you might earn the achievement [How Can I Face the Twenty-Four Emperors of the Han Dynasty?] (Title earned: Conqueror of the Busty Han. While you have this buff, your mount position comes with bonus stats, and just like a hunter's roll, you're invincible while riding.)
Earn the achievement [The Qin Dynasty Fell in the Second Generation] (Title earned: Mother and Daughter Fly Again Is a Dynasty. You're now a qualified beginner!)
Earn the achievement [The Three Kingdoms' Fans Are Restless] (Title earned: King of the Turncoats. Let me tell you, I've met every warlord from the end of the Han Dynasty. With them, I laugh in bed and sew up the seams.)
Then there's [The Sui Dynasty's Repeat Performance of Mother and Daughter Fly Again], [The Tang Dynasty Comes with a Chaos, Incest, and Kin-Slaying Buff: A Song of Murder and Fucking], the Song Dynasty, [Ruling the World Alongside the Scholar-Officials, Only to Be Fucked by the World], the Ming Dynasty, [Our Great Ming Is the Cutest, and How Can It Be Cute If We Don't Fuck It?], and so on and so forth.
Finally, earn the achievement [Twenty-Four
