Song Jia is a genuine Beijing girl, a Beijing girl who is starting a business in a Korean clothing store, and a microphone master. In her life, she lives by the rules every day, buying, adjusting, selling and attending weekly KTV parties. Her good sister Gao Meili has always wanted to find her a boyfriend quickly. At a KTV party, the same single emcee Song Shuang was jokingly called a couple by friends because his name was too close to hers. During the game of passing notes, the two of them had a good impression of each other. After the party, Song Shuang was carried home by Song Jia and Gao Meili because he was too drunk. The fate of the two has been intertwined since then. In repeated interactions and KTV parties, Song Jia and Song Shuang got to know each other better and better, and finally got together. The two people who were originally happy and happy suddenly had a cold war because of the appearance of their childhood sweethearts and ex-boyfriends. Song Jia's ex-boyfriend and Song Shuang's childhood sweetheart each used their own tricks to make the misunderstanding between the two people deeper and deeper, and the two people also silently endured the choice and pressure of love or not. With the help of Gao Meili and Qiuqiu, Song Shuang wholeheartedly held a private KTV confession ceremony for Song Jia. He worked hard to learn and sing a "Little Love Song" to confess his love to Song Jia, and they came together sweetly...