I need recommendations for this.
I recently watched Vampire Detective, Vampire Prosecutor, Cheo Yong, I Remember You, and God's Quiz. I really liked it and i'm now hooked.
It would be great if there's some romance and comedy mixed in too.
Thanks in advance :)
Korean
Dr. Frost
Secret Investigation Record

Chinese
Love Me if You Dare

Japanese
Biblia Koshodou no Jiken Techou
The Memorandum of Kyoko Okitegami

BORDER, which is a Japanese crime drama, also has a supernatural angle, I think. (The main character can communicate with the dead.)
Signal
The Girl Who Sees Scents
Who Are You (2013)
Maou
Orthros no Inu
Angel Heart
Jenius
Ouroboros
+1 to everyone else's recs!

w/ supernatural aspects:
Bring It On, Ghost!
Psychometrer Eiji
Wu Xin: The Monster Killer 
W - Two Worlds (fantasy not supernatural, but similar)
Opas: The Series Season 1
 
w/out supernatural aspects:
White Christmas
Cruel City
Wild Heroes
Crime Squad
Evil Minds
Gap Dong
Hidden Identity
Joker Yurusarezaru
Local Hero
Remember – War of the Son
ST ~ Aka to Shiro no Sousa File
S - Saigo no Keikan Three Days

movies:
Kids (supernatural/crime-ish/some romance)
Shikaku Tantei Higurashi Tabito
The Gifted Hands
JAPANESE
Ryusei no kizuna
Maou
The quiz show 2
Liar game
Kazoku game
Youkoso wagaya e

KOREAN
Signal
Healer