That sounds like something an old spirit would say. But, if your shop was separated by that kind of barrier... you're probably in a different sort of Japan than mine. I think the problem runs throughout the human worlds of Earth. They get disconnected to their roots in the spirit world.

Karma's a thing, but I believe the powerful spirits put too much stock into it. It mollifies themselves to say "They'll pay for it." [She snorted and leaned against the old wood of her shrine. "A hundred and change years have passed since Yukari set the barrier up. They're still kicking around like the little ingrates they were. Karma takes longer than some youkai have lives to live. But I guess it makes them feel better."

"I've been around a long time. Makes you jaded to plenty of things, even ignoring the sorts of things I deal with. I don't bank on that comeuppance anytime soon." She glanced at him again, frowning. "Who or what owned your shop before you took over for them?"