Contract With The Billionaire

He needs an heir for him to acquire his grandfather’s property and he wants it without getting into any relationship or marriage after his terrible breakup with his ex-girlfriend.
After trying everything when he doesn’t succeed in finding the suitable woman, he personally sets out to find her and then he collides with her. She was desperate for something which he promised to give, but keeping his condition of giving him a baby.
She does agree to the proposal, but it surely does not end up the way they had