The protagonists of the story are Mr. Shi and his wife Xiaoxi. Mr. Shi is a successful business elite, while Xiaoxi is an independent, smart and witty woman. Due to Xiaoxi's forgetfulness, she often forgets that the two have obtained the marriage certificate, which makes Mr. Shi feel helpless but full of love. During a phone call, Xiaoxi forgot about the marriage certificate again. Mr. Shi decided to take her on a trip and planned to reapply for the marriage certificate during the trip. However, an unexpected situation encountered during the trip made Xiaoxi realize that she had forgotten to get the marriage certificate again. After Mr. Shi's explanation, she finally realized that marriage needs to be managed with care.