Both dramas are about the love between a man and a ghost. Specifically, about the love between two guys. In both, mysteries are solved.
Both dramas are about the love between a man and a ghost and both have mysteries. Also, in both there is love between two guys.
Both shows are dating shows. Both shows are from Taiwan. In both shows, participants go on dates with someone of the same sex. The only difference is that "Fall in heroine" is a lesbian show and "Boys like boys" is a gay show.
