Goddess Bless You from Death

It's both about mainly murder mysteries and the main role seeing ghost of the dead but in Jdrama the main role use these ghosts to solve their cases.
Border is amazing, a bit old but amazing and everything about it is lovely, a bit dark, with some comedy side like all jdramas!

The OG teen based horror, ThirTEEN Terrors has the same supernatural threads and connections with unnatural, strange and spiritual horrors