Cureently reading manga, and watching anime, I didn't know that it has a novel, but it stopped translating since 2015, hope someone will translate it
It's about a girl who can see youkais and ghosts, and is currently helping them, and boy who every youkai and ghosts are very afraid of, and about them solving every mystery that youkai asks with and helping them.
It's not about MC with op abilities, and some of them had to pay something for their abilities, and it remembers me anime " natsume diary of friendship", maybe some people watched it, and I like stories about youkai, and if you are interested in it too, then I recomend it