Mate-me, Cure-me (2015)

Both have lead with different personalitie, just that in Meloholic it's the female lead who have different personalities.

Similar healing for the male lead with psychological conditions, with help of female lead. Unique love stories, quirky, gripping from start to end.

Donovan is an American model in search of a woman he's lost touch with. Pam is a kindergarten teacher. When her grandfather becomes sick, Pam learns he'll need to undergo an expensive operation. In order to raise the funds, Pam takes a job working for Palee Modeling where she's assigned to work as a manager and personal interpreter for Donovan. She's soon wrapped up in both his work and personal affairs.

SAME = both have leads with multiple personalities, hypnosis is included along with ambiguous relationships with their psychologists

DIFFER =
KMHM: ML has several personalities and FL is mental support, romance is more
evident
SdKdSdPwW: FL has 3 personalities and a twin is involved while the ML is
emotional support, murder investigation and an aspirational hero are
more central

The leading lady is a strong person, the leading man get psychological treatment and the leading lady also helps him. The Drama is very funny. The main actor becomes to played from Ji Sung.

Both feature a male lead with split personality (Kill Me Heal Me has several personalities while Gap Dong only has two) and an unpredictable plot based around mystery. However Kill Me Heal Me is for the most part more light-hearted and comedic than the rather heavy storyline of Gap Dong.

Both have the male lead character suffering from Multiple Personality Disorder..........................................................................................................................

They tell a story about main character with psychological disorders,who meet someone who will help them.They both are comedy,and realy interesting to wach

- JiSung is also the main lead in this drama.
- Both main leads have a rare diseased and gets help from the female lead to get better.
- Both have lots of medical terminologies mentioned.

Kyoko, a young woman with an unhindered spirit despite being physically bound to a wheelchair due to illness, and Shuji, a stylish and popular fashion magazine hairstylist, are brought together in a fateful traffic incident. Despite their confrontational meeting, they soon find themselves falling in love, with Shuji drawn to her courage and enthusiasm and Kyoko attracted to his ability to look beyond her physical limitations and into her heart. However, Kyoko's protective older brother and her worsening condition begin to test the bounds of their love for each other and threaten to end their beautiful life together.

In both the hero need to remember his tragic past and both drama are very very good so when you search drama, go see this awesome one.

Split personality is the theme
but in bad and crazy there are two actors playing the two personalities not just the same actors playing multiple personalities