XxxHOLiC
From OtakuWiki
Synopsis
Kimihiro Watanuki is a young boy with a big problem – it seems he has the ability to see demons... and the demons he sees are tormenting him. It was during an attack by one of these demons that Kimihiro happens upon the shop of Yuko Ichihara, a beautiful but mysterious woman, who also is a powerful witch that has the ability to travel across dimensions. It seems that Yuko may have the solution to the boy's problem. However, Yuko doesn't work for free, and the price Kimihiro must pay is more than he can afford!
Luckily, Kimihiro is also a very hard worker, and had taken a job being Yuko's personal assistant, which consists of cleaning her shop and cooking for her. And although Yuko can be a bit bossy (she seems to, at times, treat Kimihiro more like an indentured servant rather than an employee), she cares for the troubled young man. However, Kimihiro isn't that enthused when his girlfriend and his romantic rival soon take up with the mysterious Yuko as well.
This is another anime based on a series composed by CLAMP, who also created Code Geass, Cardcaptor Sakura, X/1999, Tokyo Babylon, Magic Knight Rayearth, Miyuki-chan in Wonderland, Angelic Layer, Chobits, and Tsusaba Chronicle (Yuko also appears as a character in Tsusaba Chronicle).

