After drinking, Song Xi mistakenly had a flash marriage with Jingzhuo of the Baihe Group, not knowing that he was the eldest brother of his best friend. Jing Zhuo's secret love for many years is gradually revealed, and Song Xi also falls in love with her, but unexpectedly discovers her husband's dual identity. Adapted from the Tomato novel "My bestie says my eldest brother is mean, but he calls me baby at night" by Liu Qi.