Shu Xin, a 28-year-old founder of a translation studio, goes on a blind date at her aunt's insistence. She mistakes table No. 1 for table No. 7 and meets Jiang Ran, the founder of Lancang Biotechnology. Both are under pressure from their families to marry, and their encounter is made even more special by the fact that Jiang helped her out of a difficult situation on the street the day before. They hit it off immediately, sign a prenuptial agreement the next day, and quickly register their marriage. After the wedding, they go from being neighbors to contract roommates. Through the everyday ups and downs of married life, Jiang Ran protects Shu Xin's sensitive heart, stands by her when facing criticism from their elders, and helps heal her family wounds. Meanwhile, Shu Xin discovers the tenderness beneath Jiang Ran's stern exterior. Business trips, amusement park dates, and meetings with friends and relatives gradually turn their contractual marriage into genuine love.