Commercial espionage vs corporate heir.
She was ordered to get close and use all means to become his only personal assistant who made an exception, with the task of ruining his reputation.
During the day, they were superiors and subordinates with a perfect understanding; at night, she was a ghost delivering information to his "old enemy". She carefully set up a love network and watched him sink step by step, and she gradually lost ground in this false game.
When the final night of the mission coincided with his proposal ceremony, she held evidence that could destroy him, but found that she was already deeply involved. The moment his identity was revealed, he grabbed her wrist and said in a hoarse voice, "Have you ever been sincere to me for a second?"