Definitely, It's Infinity (The Luther's Empire Series)

“INFINITY HASSON needs to marry a man - a man that is passable to be her better half. But would it be possible if her status is single? Could it be feasible to hire someone just to act as her husband? Then this man came from nowhere - a loudmouthed man- her total opposite which so irritates her. For Pete's sake! She could marry someone, but not with Teranusjulio 'Ranus' del Prado. Never! It's a big no way! Nevertheless, only that man is the best option she has. Could she ask Ranus to marry her or would she let their business be run by others?”