ML likes FL first (this one actively chases after her tho) but both really REALLY like her.
Suburban/Small town setting
Same quirky humor
Serial killer after the female lead
Both these shows add some aspects of a thriller in the drama which juxtaposes the bright romantic tone the show presents itself as.
(Both shows are able to still stay light throughout it tho)

Rich student setting

*is also a law drama

Death of a student / mystery

School violence

Rich kids