Both have a male lead that is devoted to the female lead, and the interactions of each couple are very cute.

Both of these dramas star a female lead with a birth secret, who has a self sacrificial outlook on life. Both lead females are super depressing because their circumstances in life sucks, however these two characters still make you root for them, they are good inherently so you as a viewer wish they would finally find happiness. The day to day dialogues and outdoor events done by all the different characters are similar, both dramas have a slice of life quality to it that you don't see in long running dramas anymore.