A month ago, Shang Zhen (played by Xiong Dailin) came to Seoul, South Korea, and met Jianyu (played by William Li), a bookstore owner who failed to propose to his girlfriend. Jianyu was kind and gentle, which made Shang Zhen, who was immersed in the pain of her boyfriend's betrayal, suddenly have an idea: to use Jianyu to help her ruin her boyfriend's wedding. So Jianyu followed Shang Zhen to China. When Shang Zhen returned home, he exposed his "barbaric" side and neglected to take care of international friends who came from afar. Shang Zhen's cousin Yongzhen (played by Feng Yuanzhen) is as troublesome to men as her sister. There is a student Zhikai (played by He Jiong) who lacks masculinity in Yongzhen's class as a taekwondo coach. Zhikai admires Yongzhen, but he often suffers from Yongzhen's fists. Jianyu accompanied Shang Zhen to prepare for the wedding, but offended strangers during the exercise. At this time, the date of the wedding is getting closer and closer...