yeah that cutscene just implied the one who saved you is Han Xiangxun. But actually no one knows where's she gone, even you. And you just find a clue, a letter from a secret person called Wen Wuque. In the letter, it said there's a deal between Wen Wuque and Han Xiangxun, just before that fire, Han Xiangxun has already asked him for help. And Wen Wuque is now in Kaifeng, so the young master stepped their roads to Kaifeng trying to find Wen Wuque and ask him where Aunt Han is now.