My Sister Faked Her Death So I'd Marry Her Husband — But After 3 Years, He Won't Let Me Go!

My sister faked her own death to make Shen Xiaoan suffer, and me — to become his second wife. She left three harsh conditions, hoping he would be forever indebted to her. But she miscalculated. For three years, I was the perfect “maid” and mother to her daughter, managing the household without a single mistake. Until one day, my sister returned, expecting everything to go back to normal. But Shen Xiaoan, who previously hadn't noticed me, suddenly stood between us, firmly shielding me behind his back. What is this — sudden affection or part of a new, dangerous plan?