Kill Me, Heal Me

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.

A brother - sister relationship that has some other meanings. The two story of brother - sister developing feelings for each other

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.

A traumatic childhood experience leaves Cha Do Hyeon, suffering from memory loss and dissociation. The latter has resulted in the creation of seven distinct personalities. Wanting to regain control over his life, he asks Oh Ri Jin, a first-year psychiatric resident, to help him, but she eventually falls in love with one of his personalities. Ri Jin’s twin brother, Oh Ri On, a famous mystery novelist, investigates Do Hyeon and his family.

Both Main leads suffer from a dissociative disorder. Both experience having their alter ego be in love with someone that they are unfamiliar with. Both have no idea how to cure themselves.

Both: are comedy mixed with melodrama (although I think BotC is a bit more dark and KMHM is a bit more cornball), have people doing dirty deals to try to inherit money/power/family business, feature a sibling-like relationship between the leading lady and the 2nd lead male, have a mystery surrounding both the leading lady and the leading man, leading men have trust issues due to people always wanting to take advantage of them for money, are well done.

Also known as 'Autumn in My Heart'. If you are a Park Seo-joon fan and were wondering 'what if' his feelings were reciprocated by Hwang Jung-eum, look no further than this melodrama series that kicked off the Korean Wave. Hotness itself Song Seung-heon stars alongside beautiful Song Hye-kyo in this tragic tale of (not real) sibling love.

Male lead have terrible past.
Terrible past was caused by his own family member.
Male lead always suspect his father for terrible things happened in past.

Psychopath Diary and Kill Me, Heal Me are similar in that they feature a male protagonist facing deep psychological issues that shape the main plot. Both series skillfully blend suspense, mystery, and moments of humor to lighten dark themes. They explore the journey of self-acceptance and inner healing, while incorporating a romance that adds a strong emotional dimension. Finally, the twists and turns and secrets revealed keep the viewer on the edge of their seats until the end.

The acting of the casts were great. Worth to watch. Storyline is beautiful. One of the evidence to say that the acting was amazing will be the winner of Daesang 2015 of MBC: Ji Sung. Funny, Romantic and hot. FASTER WATCH IT......

This movie is not about a split personality, but it's about a father who died and bargained with an angel for a deal. He was sent back on earth as his son's new friend. Touching and hilarious at the same time!

A traumatic childhood experience leaves Cha Do Hyeon, suffering from memory loss and dissociation. The latter has resulted in the creation of seven distinct personalities. Wanting to regain control over his life, he asks Oh Ri Jin, a first-year psychiatric resident, to help him, but she eventually falls in love with one of his personalities. Ri Jin’s twin brother, Oh Ri On, a famous mystery novelist, investigates Do Hyeon and his family.

Both are dramas with healing stories, where the male protagonists are business heirs, who suffer from mental disorders/barriers . They have a high position in big companies and get involved in dark intrigues and secrets. But despite that, they manage to stay warm-hearted, and they care a lot for the people they love.
The female leads have similar personalities; both are optimistic and cheerful, but both experienced tragic events in the past. They help male leads to become stronger and to overcome their mental problems.

The female lead in Threesome has the similar multiple personality disorder as the male lead does in Kill me Heal me

Eun Soo is a pure but unsophisticated woman who runs a small resort inn with her father. Eun Soo is just an ordinary girl, but her life changes when she meets a man who's completely lost his memory. She takes him in and cares for him, and even gives him a name: "Baek Chang Ho". Love blossoms, and soon wedding bells can be heard.
But on the night of their wedding ceremony, Eun Soo's father passes away. And soon after, Chang Ho disappears too! In the blink of an eye, the two people Eun Soo loves most in the world have left her. But Chang Ho had his reasons for disappearing: his real name is Kang Hyun Woo, and he's heir to a large conglomerate. Even more, someone is plotting to kill him. Edit