The Devil's Cage - Chapter 86: Walk Together

Poison — a cold-blooded assassin, abandoned by his family and cast into the shadows of the underworld. He lived without purpose... until a supreme being took notice.Just like that, everything changed.---In a world of swords and magic, rumors spread of a strange, otherworldly café. A place where both mages and ordinary people can enter foreign realms, fight legendary battles, and return with enhanced magical power and understanding.But there’s one rule whispered by all who know of it:Never offend the owner.He may look lazy, uninterested, and far too calm...But those who challenge him are never seen the same way again.They become “special slaves” — forever bound by punishment and magic, trapped in service to a man far more terrifying than he appears.---He owns the café. He controls the worlds. And now, he’s just getting started.

I saved the Warrior who used to ignore and bully me and now she is obsessed with me.

Because her appearance was not breathtaking, the Emperor breaks off their engagement and bestows her instead to the bloodthirsty, ruthless, and cold-blooded Second Prince (Wang Ye).

On her wedding night comes endless humiliation, the genuine Princess Consort becoming a deserted women. A foolish woman before rebirth, she no longer expects his love. In this world, she must possess enough talent to awe those around her, carrying herself with composure and articulating with beautiful diction, override above the nine night.

- Description from Novelupdates

This novel is also known as The Yun Family's Ninth Child is an Imp!

She was an unprecedented assassin, a trump card deadly agent, but transmigrated through into Ye City’s number one prodigious good-for-nothing young miss.

I am an ugly woman? I will break out from my cocoon into a gorgeous butterfly that will blind your snobbish eyes!

I am useless piece of heap? Lightning in my hands, I will smite you to a well-cooked crisp!

Her greed and lust for money had no end. She is lewd to the core with no bottom in sight, sworn to have love fortunes blossom all around her. However, a certain someone holding a blade in the left hand and a sword in the right hand began cutting those love fortunes one by one!

The person smiled with perked brows, “Little Ninth, it looks like I have to let you become occupied!”

- Description from Novelupdates