[Looking for a Novel] Set in the 80s or 90s, Hong Kong, and Featuring a Young Lady from a Wealthy Family 【找一篇文】年代+香江+大小姐

There's a plot point where her uncle, maybe, went off to serve in the army under an assumed name during wartime. If nothing goes wrong, he's about to be sent down to the countryside later, but the heroine helps him change his identity and return to Hong Kong. He goes back to his mother's hometown, where they make medicinal food or something, and they even dig up wine his mother buried long ago in the old house.