xxxHolic
Volume 1 Part 1

Watanuki, a young man plagued by spirits which only he can see, literally stumbles into a shop that grants wishes. It is run by a mysterious woman named Yuko who claims to have the means to end his torment. But a price equal to the power required to grant his wish must be paid, and Watanuki soon finds himself in her employ and part of a mystical world where nothing is what it seems!