History's Strongest Live-In Son-in-Law

He was once a fallen Immortal Venerable, and seized the body of a lowly wretch simply to save himself.

In other people's eyes, he is merely the useless son-in-law of the Lin family, not worth mentioning. But within the Lin family, he is a medicine vessel they have secretly cultivated, nothing but a *.

He was never the meek sort to let others bully him. A wife he hasn't touched in three years? No problem, he'll take care of that!

Looked down on at the hospital? No problem, he'll make every one of these ** people submit at his feet!

His father-in-law looks down on him? No problem, then he'll destroy him!

Note: No groveling in this story, just nonstop feel-good wish fulfillment. After all, he's the male lead, with an endless halo of plot armor.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.