Meng You (Li Zixuan), a young Lingguan from Lingyuan who has the natural ability to cry, accidentally lets Li Bugui (Zhang He) go after he didn't drink the Forget-Sorrow Soup, putting Lingyuan and her grandmother in a difficult situation. In order to make up for his mistake and save her grandmother's life, Meng You volunteered to go to Qingchuan to complete the task of pouring soup. However, when Meng You, who couldn't lift anything with his hands or shoulders, arrived in Qingchuan, he found that Li Bugui was already the number one killer in Qingchuan and had extraordinary martial arts skills. In order to get close to Li Bugui and successfully complete the task, Meng You began a journey of throwing a tantrum and making trouble to pour soup.