Sister-In-Law, Open the Door, I Am My Brother!

Lin Chenxu and Yi Lian first met at his brother's wedding, when he was the best man and she was the bride. A few years later, he became the groom and led Yi Lian towards happiness. ——A few years later "I'm your almost-sister-in-law, so be polite to me." "Fart, you are my soon-to-be wife." ——Before that "Lin Chenxu, can you do this question?" "Yes." "What to do?" "Guess." Purpose: redemption