Both are noona romances. Where older women date younger men and realize they can find love in unexpected places. There are also 2 male leads who seem suitable for our heroine.
There are also other stories surrounding the main couple. The storylines of a few of the secondary characters are also similar.

Both deal with older women dating younger men ad the conflicts they face. Both younger men seem directionless at first but both have issues as to why they live the way they live.