Baseball player Tae-gyu and hospital doctor Joo-young once had a perfect relationship, but after a breakup, the two reunite after 12 years. Decided to enter the palace of marriage together, but when they were about to get married, the two suffered from premarital depression, and they both discovered the secret of each other for such a long time, and broke down and cried instantly. Another celebrity chef, Yuan Zhe, and manicurist Su Mei have been in love for seven years. After the seven-year itch, they have begun to get tired of the relationship and have not entered the palace of marriage. Su Mei decided to go out to relax before getting married. . As the two couples encounter different pre-marital situations. Their stories continued to happen in the following time. Marriage travel plans, religious issues, and family conflicts each became various troubles affecting the two couples before they got married. Regarding whether the couple can successfully enter the palace of marriage, whether everyone can untie their knots before getting married