Synopsis：Shen Qingli has been secretly in love with Gu Heng for eight years. After a one-night stand, she got into a misunderstanding because she asked Gu Heng to pay. Since then, the two have been strangers during the day and lingering at night, which is ambiguous and heartbreaking. The subtlety of being separated by a wall in the powerful and wealthy circles of Beijing, and the plot that Shen Qingli was mistakenly called "Mrs. Gu", etc., fully show the complex emotions between the two.