every time I try to describe Haru, I keep going back to this point. Haru was really similar to Nam Sin 3. in some ways both were like new born babies? both had no real past, and in some ways that led to them being "characterless" in a way that everything felt new and weird to them.

Ma Dong Seok acts in both movies as the "bad" guy that is used to catch a "worse" guy? and both movies have the same concept of cop + criminal, against the more dangerous criminals

it's kinda funny that both Ma Dong Seok and Kim Mu Yeol acted in the bad guys series, but not in the same one.. KMY acted in the 2nd season while MDS acts in the 1st and movie vr.
basically the stories are the same, the cop/prosecutor work with the "bad" gangster guy to get a more "evil" enemy..

well Dramaworld is about a fangirl who ends up in her favorite drama, but the main lead there finds out that he's not a "real" person, just like the fl in Extraordinary You..

recommendations are not just about similarities, so I'll just say (beside be melodramatic) TTON is the drama that got me out of my HDL slump~

Just Dance and The Tale of Nokdu both have Jang Dong Yoon which is nice for people who are getting interested to see more of him ;)

also, even though it happened for a short while, he cross dressed in JD too xD

I just want to recommend these for each other because I think their comedy sense are pure gold, these days I don't find much comedy genres funny, but these two make me laugh until I cry :)

they are both "office/business" comedies.. both main male leads are the "not good" types, but in the end both end up doing something to help others. and the comedy sense is really similar too

Both Little Forest and Dad! Where Are We Going? are about kids experiencing the "outside world", while LF is more like a day care, and the hosts are unrelated to the kids

Dad! Where Are We Going? is like a mixture of both 2 Nights and 1 Day and The Return of Superman. it's about celebrity dads taking their kids on an adventure...

OMB is more flexible on which parent --if not both-"takes" care of the kid, and it's a shame that it was never fully subbed then canceled all together, but yeah both are about celebrity parents and their kids ;)

they are both "investigators", but not crime/murder investigation, more like harms done by corporations?