both have: (from most to least overlapping)

- teenage/young pregnancy
- depression with mothers
- father breadwinners
- estranged family relations on both sides (mother and father to-be)
- discrimination at school due to pregnancy news
- cheating/love triangles among the older characters

-JESSI!!! (to be honest, there's not much similarity other than that)
-literally the same humor/vibe

-romance, though Love in the Moonlight is a lot more fluff than Moonshine
-tough/ordinary-ish girl, often dresses as a guy
-guy is higher rank than the girl
-(possible) second-lead syndrome/second-couple syndrome
-second-lead starts out with friend vibes

-two male leads
-investigative, but D.P. is a lot more serious compared to Bad and Crazy as it is based in the military and not the police force
-a touch of romance in both, a little bit more in Bad and Crazy

-gives debuted idols a second chance
-attempts to re-introduce "older" idols back into the mainstream K-pop industry
-forms a ready-to-debut idol group