3.239 out of 5 from 380 votes
At first glance, Kimihiro Watanuki appears to be a normal high school student; but little do people know that not only is Watanuki able to see spirits, but he's also a magnet for them! One day, after being chased by one such spirit, Watanuki happens upon a strange building. There he meets a mysterious witch named Yuuko, who claims she can get rid of his ability to see spirits - for a price: Watanuki must work as her housekeeper until he has paid off the cost of granting his wish. Now Watanuki's eyes are being opened to an entirely new side of the world as he assists Yuuko in her work, all while balancing the housework, his schoolwork, and most importantly, ensuring that Yuuko is never out of sake!
Both manga feature a shop which grants wishes and in both cases the price for those is not cheap. Both series are a little dark (but xxxHolic probably had darker stories).
a store that sells skill, and is thereby grant for their desires? there is nothing more like xxxholic, even the same feeling of altruism above all of the characters and similar...
Both manga feature special shops run by a mysterious person who provides a special service for a potentially high price. In both manga, those who seek these special services end up getting more than they bargained for. Also, moral lessons can be found in both manga. It should be noted that Nightmare Inspector: Yumekui Kenbun is a 9 volume series, while Ability Shop is only a one-shot. Still, if you like one, you will probably like the other.