My Son-In-Law Is An Immortal

あらすじ

An elixir factory line worker dies in the most ridiculous way—and wakes up in the body of an ordinary man. Now he’s the useless son-in-law of a struggling family… with a past full of humiliation. Except this time, he’s not weak—he’s lived through centuries of cultivation. And he’s about to turn this entire family into something no one expects.