A Sen (Ekin Cheng) and Xiao Lan (Chrissie Chau) have been in love for 8 years, and the only way they can maintain their relationship is to break up. Whenever Xiao Lan threatens to break up, A Sen will become a dead dog to seek peace, which makes Xiao Lan even more aggressive. After they have experienced 99 breakups, the two finally recognize each other, so they promise not to break up easily again, and are determined to work together for the future, be their own boss, and work together to run a coffee shop. A group of friends such as the tea restaurant's prince daughter Rui Ge (Wang Yizhi), A Sen's elementary school classmate Feiyun (He Haopeng) and the coffee shop clerk 4 Boys (CallStar) not only witnessed the growth of the coffee shop, but also witnessed the impact of operating a coffee shop on A Sen and Xiao Lan, the young couple. Especially when the originally ordinary coffee shop became popular because of Ah Sen's wild idea - "Breakup Mini Storage", a place where all love exhibitionists can deposit their breakup relics for the whole world to peek - Ah Sen no longer only focuses on having fun, but begins to become mature and has more ideas about the future. The success of the coffee shop has made the distance between Ah Sen and Xiao Lan grow wider and wider. At this time, Lai Lai (played by Wen Xin), a regular customer of the coffee shop, has an ambiguous relationship with Ah Sen. All this seems to be triggering their 100th breakup...