I've Been Planning on You for a Long Time

In order to raise money for her grandma's surgery, she signed a contract marriage, thinking that she was a "shield tool" for the boss. After getting married, she worked hard and pretended to be well-behaved, until one day she discovered that there was a note she had written in high school locked in the boss's safe: "If you can't get married at the age of 30, you will have to rely on Lu Huaian." The note was signed three years before she signed the prenuptial agreement. It turned out that he had been planning it for a long time!