In order to help his master regain the five-star kitchen knife that represents honor, apprentice Li Nai (played by Zhang Miaoyi) "goes undercover in the enemy camp" just to defeat the "famous chef killer" Jiang Jie (played by Xie Binbin) one day, but falls into the "trap" designed by Jiang Jie. The play is based on traditional Chinese cuisine. The culinary rookie and the culinary "knife killer" start a "sweet battle" of wits and courage, mutual promotion and mutual restraint.