The show builds a supernatural Tokyo where spirits aren't threats to banish but presences to negotiate with, and every mission is a conversation that could go wrong. The cast moves through their cases with the exhausted pragmatism of people who've learned that most yokai just want to exist without being noticed. It's folklore treated as municipal work, the kind of show that finds genuine unease in the space between worlds, not in jump scares.
Onmyou Hyakki Monogatari is a TV.