Great Tang: The God-Tier Bear Child

A Prince Reborn as a Baby

A sign-in System from childhood that can summon an army of civil officials and military generals.

Unlimited Supplies in the Tang Dynasty

Just running a supermarket.

Transmigrate Into a Prestigious Clan in the Tang Dynasty

Any period from the early Tang to the late Tang is fine.

The Tang Dynasty's Illegitimate Son

A secret son of the Tang Dynasty, either Li Yuan’s or Li Shimin’s

Any Tang Dynasty Stories Where the Lead Is Reborn as Li Shimin’s Son and Comes With a System?

Reincarnated in the womb, with a System, a crown prince, and a natural genius who excels at both literature and martial arts.

Books About Li Ke of the Tang Dynasty

Tang Dynasty Stories! The Protagonist Is Li Shimin's Son From the Start

Stories about Li Shimin's illegitimate son

The Tang Emperor Keeps Calling the Male Lead a Worthless Son

Emperor Li Yuan or Li Shimin would both work.

The Male Lead Transmigrates to the Tang Dynasty and Becomes Li Shimin's Long-lost Son

What novels are there where the male lead transmigrates to the Tang dynasty and turns out to be Li Shimin's long-lost son?

Transmigrating to the Tang Dynasty as Li Shimin’s Son, a Mischievous Kid Who Gives His Father a Hard Time

Tang Dynasty.

What's the Name of That Novel Where Someone Transmigrates to the Tang Dynasty and Uses a Jade Seal to Crack Walnuts?

Historical Fiction: Li Shimin’s Rebellious Brat of a Son