If you need recommendations for anime similar to xxxHolic, we've got plenty of options for you. One that comes immediately to mind is the anime Mushi-shi, which like xxxHolic centers on a person's ability to interact with non-humans. There's also Bakemonogatari and Natsume's Book of Friends. Still other anime like the dark fantasy of xxxHolic include Hell Girl, Sayonara, Zetsubou-Sensei, and Mononoke, which follows a medicine seller as he also deals with ayakashi (unnatural spirits).
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