Cause of my Euphoria

After trying so many jobs, Syanja finally made her decision. She started to write novels and decided to be a novelist. One day, she got an offer from a big company. It is the best company all around the world for authors, She accepted the offer to move away from her hometown. All she wants was to be successful.
One day the CEO's younger son Jeong Jung-Hoon saw her helping someone. He was amazed by her actions and beauty and slowly his feelings started building up for her.
His friends and brothers helped him to chase her. After some meetings, they get close to each other and fall in love, but Syanja's ex Hyung-Shi comes back into her life. He started to meet her and tried to take her back to him. On the other hand, Jung-Hoon was busy with his work and hardly made time to spend with Syanja. They started to distance themselves. They are public figures and rumors started spreading for them to lose trust in each other.
They started to focus on their careers, but both of them didn't know what fate wanted. It wasn't the end of their love. They changed themselves, made their character strong, and met each other again, this time with more powerful souls, this time with no love but anger.
They made each other regret everything they did for each other.
They tried everything to make each other down but it's made them closer than before.