Contract Marriage With The Devil Billionaire -

She finds out why he is the devil. She discovers the betrayal in his past. She learns that his first fiancée sold his company secrets, or that his father locked him in a basement. She stops seeing a monster and starts seeing a broken boy.

Unlike the standard "grumpy billionaire" (who is usually just misunderstood), the Devil billionaire is often a Luciferian figure. He was cast out—either by his family, a former lover, or society. He now rules his corporate underworld with an iron fist. He does not negotiate; he dictates. He does not love; he acquires. contract marriage with the devil billionaire

What separates a mediocre contract romance from a great one is the conversion rate of hate to heat. She finds out why he is the devil

In the beginning, the heroine fears him. She drops her coffee when he glares at her. She stutters when he invades her personal space. He, in turn, views her as a line item on a spreadsheet. She stops seeing a monster and starts seeing a broken boy

But then—the slow drip of humanity.