*psychological

a little bit dark/twisted psychological manga but not that much
Protagonist body swaps with a kid who tried to commit suicide.
includes:
two face people, school bullying, blackmail, dealing with someone he knew before he swapped bodies, sad pasts, family abuse, strange family situations

end up strangely liking the 2 main characters. love their interactions with each other.
*Shouen Ai*

About a boy whose blood regenerates fast and a vampire
includes:
strange/sad family situation, abuse/using, secrets/blackmail, purposely making misunderstandings
A little sad but very interesting
*Yaoi warning*

only a little psychological-not dark
this manga is more light hearted and funny
about an average guy who runs a hot blog about high heels and a once famous shoe maker

includes:
coping after betrayal, famed, obsession, secrets, blackmail, past plays a role

a little dark/twisted psychological
at time is rather light hearted and funny
about the Noblesse (the being that watches over vampires)
includes:
human experiments(and other races), killing, lies, death, secrets, using, different mindsets, betrayal, past plays a role
age difference-humans, vampires, werewolves
despite the darkness and psychological traits, this manga is very interesting in a non-dark/twisted way