Lawyer Meng Tingyu, who has been secretly in love for ten years, has more than 500 love letters written to Lu Suizhou. Reunited after a long absence, the two unexpectedly became neighbors upstairs and downstairs, and Lu Suizhou proposed a contract marriage. Their love grows wildly as they spend time together, and she uncovers the trauma of her original family. He firmly protects her and works together to thwart a business conspiracy. Ten years of one-way secret love finally turns into a two-way love.
