[Historical romance + sweet romance + devoted to each other + love grows over time + satisfying revenge + one-on-one romance]
The Shen family has two lovely daughters, the apple of their general father’s eye.
The elder, Shen Qingqiu, is accomplished in both letters and arms. She marries into the marquis’s household and supports Gu Yanzhi, the stern and rigid heir.
The younger, Shen Zhixia, is sweet and carefree, and is matched with Gu Minglou, the marquis’s second son, a charming libertine.
But on their wedding night, a twist of fate leads the sisters to enter the wrong bridal chambers.
Shen Zhixia, who adores her big sister, realizes she has slept with her future brother-in-law and is scared out of her wits. With the deed already done, the two families can only make the best of it and swap the marriages.
Shen Zhixia doesn’t mind. As long as her sister is still in the capital, she doesn’t care whom she marries.
But her new husband, Gu Yanzhi, is far too strict!
She has to stand with proper decorum and sit with composure. He won’t even let her eat candied fruit in the study, and at night he won’t let her cry herself to sleep. What a brute!
Shen Zhixia cries to her sister to complain, never realizing that her cool, forceful elder sister is busy disciplining her former fiancé, the capital’s number-one playboy, until he is completely under her thumb.
Meanwhile, Gu Yanzhi watches his little wife sob and hiccup through her tears. For the first time, he breaks every one of his rules and awkwardly offers her a sweet osmanthus cake. “...Don’t let it happen again.”
Later, all of the capital knows that the unfeeling heir of the Marquis of Jing’an has become a henpecked husband, humbly trailing after his little wife and begging her to spare him a glance.
I feel like the heroine has very few scenes, and it's a bit uncomfortable for the sister to hold her brother-in-law's hand, and for the brother-in-law to hold his sister's hand.