Modern doctor Xu Jiaojiao time-travels into a book to become a vicious female supporting role. She changes the original owner's overbearing ways, resolves the misunderstanding of her eldest sister-in-law's miscarriage, saves the critically ill child Xue Yuan, and develops mutual affection with Xue Chongjin. With frequent family conflicts, she takes the initiative to marry him. After marriage, she makes ice jelly to make a living, stockpiles grain in advance to cope with a drought, and clears Xue Chongjin's wrongful grievance through a blood-prick paternity test. Under a stable life, Xue Chongjin's background jade pendant is redeemed, leaving his identity a mystery.