Just read Shūzō Oshimi's A Trail of Blood/Chi no Wadachi and I think there's a horror manga artist/writer to compete with Junji Ito. Junji Ito is a master at illustrating fantastical, Lovecraftian horror that is pure nightmare fuel, but Shuzo Oshimi is a master at horror that relies purely on personal expression. Facial expressions, eye movements, linework that changes the mundane into the horrific, all coming together in masterful panel arrangements that produce pure anxiety even when nothing actually happens for vast stretches of time. Vast stretches of time that will haunt you. Like a prequel to Psycho you never knew you needed.
