Don't Think Twice, Love's All Right (2020)

Similiar theme of much Older man and Younger woman romance that surpasses age and status. Difference is they got married and the series trace their journey past that initial spark of passion. Especially when the male lead hid the fact that he was a rich man.

In addition to the similarities in age differences (men are older than women), other similarities lie in the characters of the main characters.
The male character is very mature, patient, can solve problems with full consideration. A mature figure who can protect the woman he loves.
The similarities between the female characters are that they are both cheerful, optimistic in living life, spreading a positive aura to the people around them, this is what makes people who know them like them.
The two male characters in these two dramas who are adults, when they fall in love, both do stupid things that are very funny like young people who are in love and their love is not disturbed by other women, very loyal to the person they like.