I have just finished watching it today. I expect the plot is more interesting, but it is just about the ordinary life of a couple. I can't find the main plot.

I think the connection between this drama and its prequel (One & Only) is quite weak. If I was the author, I would have kept the portrait of Shi Yi (from One & Only) somewhere in the library of Zhou's mansion. The portrait on the paper may be worn out through time, but it can be redrawn or so. In some other costume dramas, it is possible to keep the portrait for generations. Why not in this drama? Otherwise, there should be an elder in the Zhou family who used to see the painting and then recognised Shi Yi immediately after seeing her. This way is more interesting...

Anyway, the acting is good. In this drama, the ML is somehow funny but caring.