Zhou Nan, a strong-willed girl from an ordinary family, finds herself in a peculiar situation when she hires a fake boyfriend to appease her parents. Meanwhile, Chu Mo, a billionaire heir, does the same to satisfy his family's marriage expectations. Through a twist of fate, they meet and mistakenly assume each other to be their hired dates. As they navigate this misunderstanding, Zhou Nan ends up moving in with Chu Mo to help with his rent. To make the arrangement more economical, she suggests finding a third roommate. Enter Gu Xiaobei, a charming young man who adds an unexpected spark to their living situation. As the three cohabitate, romantic tensions begin to simmer, turning their shared apartment into a hotbed of sweet and spicy possibilities.