My Gender-Swapped Teyvat Can't Be This Ridiculous

[Everyone is gender-swapped, everyone! The early story follows the original plot with a few tweaks, no frustrating turns, and a focus on doing what feels right. The protagonist isn't invincible, but keeps up with the power scaling and holds his own in a fight.]

Since the plot will be heavily altered, original-work purists, please steer clear;

Since the entire continent will be gender-swapped, please steer clear if you're devoted to the original characters;

I'm just here for fun and won't write grimdark misery, so please steer clear if you don't enjoy a bit of fun;

Gender-swapping is bound to cause out-of-character moments, so please steer clear if you're particular about characterization;

This story won't be full of schemes and machinations, so please steer clear if you're here for career-building or world domination;

This story won't have a single female lead, so please steer clear if you only support one character;

This story has no brains, so if you brought yours, please steer clear, or leave it at the handsome guy/beautiful girl brain deposit. Pick it up after reading, and take care not to lose it or grab the wrong one. If there's a mix-up, please arrange its return privately. The deposit desk is for temporary storage only, not for use as a platform, and it does not offer long-term storage.

Synopsis:

Bad news: He's dead.

Good news: He transmigrated.

Bad news: He transmigrated to a very dangerous world.

Good news: He knows this world well. It's Teyvat, where he'd spent ages grinding away.

Just as Kong was planning to punch Celestia, trample the Abyss, conquer Teyvat, marry the Seven Archons, and reach the pinnacle of life, he realized the person accompanying him was a... little boy with wings?

Something about this world seems just a tiny bit off...

Kong: Don't come any closer! I'm really not a heartbreaker!