My Uncle Is Nine Thousand Years Old. Start by Attacking the Concubine in the Cold Palace.

The time-traveler Zhang Qi was originally a beggar, but was inexplicably recognized as a nine-thousand-year-old nephew and became his nine-thousand-year-old nephew. With a face full of confusion, he even learned the heaven-defying skills, sneaked into the palace, entered the court, drove away wolves and tigers, and Zhang Qi discovered a shocking secret.