Game of Hearts and Revenge

After years abroad, Song Wan slips into the Lu family disguised as a tutor for Lu Ting, a playboy commander who has never had to answer for his behavior. Her real purpose is vengeance against the household, and every lesson she teaches is part of a longer scheme against the people who wronged her. As she gets closer to Lu Ting, the line between her plan and her feelings begins to blur, putting her resolve to the test.