MARRIED TO MY ARROGANT ENEMY
Enid,  a secret billionaire who lost his  parents at a tender age with only his grandfather's support who guided him to take over the company, secretly.
But one day he announced his retirement thinking he would have to take on the responsibility of the company, he had being managing behind the shadows all this while.
But his grandpa suddenly revealed that he had arranged a marriage with a renowned CEO in England,  20 years ago and he was to travel there to live with the arrogant Gay man. 
He refused, because he is straight,  but his grandfather promised him that  if after 12 months and he doesn't have feelings for him, he would gladly call off the engagement.
He had always stayed in the countryside with his grandfather and managed the company from the background, and this made the fiancee family thought he was just a country bumpkin since her family background wasn't revealed.
Not knowing he was a also a billionaire, in disguise.