The Useless Son-in-Law's Conquest of Another World

Once, he was the family's castoff.

Once, he was a useless son-in-law to a beauty.

Once, he was an insignificant nobody making his way in another world.

Now, he is the king of that world's struggles for supremacy.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Please do not imitate.