The behind the scenes of celebrity life in both. Perhaps Love is romance focused, meanwhile TheKingOfDramas is much more about drama making BTS than romance, but does feature satisfactiry romance at mid-end of drama.

Celebrity life behind the scenes, features romances also and how those are affected by fame.
TKoD isn't so much about romance though, but features satisfactory romance arc from mid-end of drama. RakOrkAkard heavily features romance.

Allthough otherwise very different plots, both feature the touching story of (literaly) poor underdogs, their struggles and their warm relationships.

Both include romances but the romance in Rak Ork Akard is much more in focus, meanwhile Iljimae doesn't focus much on it/develop it much.

Watch both if you enjoy rooting for underdogs and enjoy warm relationships between many people not just the OTP/aka. great side characters.

Both about the behind the scenes of korean celebrity life. TheKingOfDramas focuses more on the drama making aspect, less on romance (but has very satisfactory romance from mid-end of drama, drama is abit more than just the romance);
meanwhile TheGreatestLove is about the lovestory of two k celebs (movie actor & former k pop girlband member who guests on variety shows).
Both great!!

Clash of two cultures/worlds in both. The female & male lead must overcome their cultural differences (Past/Present in QIHM and poor/rich in ROA), including interesting settings. QIHM the past and in ROA interesting village.

Similar sense of silly humor in both dramas. The OTP/main leads of MyUnfortunateBoyfriend put in embarrasing situations, meanwhile ALL the cast of Rak Ork Akard (including the OTP at the start) bicker in similar fashion to the OTP of MyUnfortunateBoyfriend.

Also both have a male and female lead from two different worlds who have to overcome their differences.

Both features Social Anxiety in one of the main leads and how they try to open up to their love interests.

Both involve MULTIPLE RELATIONSHIPS, psychology and comedy-darkness blend.

In KMHM there's 7 characters/7 relationships due to male leads multiple personality disorder; meanwhile in Love Shuffle there's several different relationships due to a group of people deciding to "shuffle"/swap relationship partners with each other multiple times, to test if there exists such a thing as "soulmate"/one person that's better for you.

While both have multiple relationships, both also have a couple of rootable MAIN couples/OTPs with a good romance arc; making shipping easier, while keeping the complexity of the relationship/s and story in tact!

Recommended for fans of psychology, drama-comedy combo, deep and complex characters and story and believable OTP/romance.

Both high quality dramas that deserve a better rating on MDL.

Multiple people involved in a relationship with one person...:

In KMHN 7 personalities/characters due to multiple personality disorder, played by one actor; meanwhile in TBI 21 actors playing one and the same character!

Oh, and both have one actor in common: Park Seo Joon.
In KMHM he plays the 2nd lead character, in TBI he is one of the 21 actor/actresses who plays the male lead character.

Psychology and mystery. Both involve the complex relationship between a psychiatrist and their client. There is a twist at the end of both.

KMHM is a korean drama, while TGH is a chinese film.

Warning: not much/no romance in The Great Hypnotist. Watch it for the psychology and mystery.

Mystery and multiple people involved. In Kill Me Heal Me, these people are the various personalities of the male lead who has mutiple personality disorder; in Mysterious Summer the mysteries surround different people as it is an anthology series with different leads each ep.

KMHM is a korean drama, while MS a chinese drama. Recommeded chinese drama for people who don't even normally like chinese dramas (I'm one of those people)!

Recommended for fans of original mysteries / not just an ordinary detective story!

Psychology and mystery themed fiction. Both play on the mystery relationship between the leads.

Green Tea is more conversational/dialogue-based, less happens; KMHM has a bigger journey/more happens...but regardless both give their take on psychology.
Green Tea is a chinese film, while Kill Me Heal Me is a korean drama.