xxxHOLiC (2006 - 2008)

Watanuki's life changes completely when he meets Yūko for the first time. Watanuki is given a job at Yūko's shop, paying off his debt. Mokona, Maru and Moro all make their first appearance in this episode.

A client seeks Yūko's aid because she has problems with her right little finger; Yūko tells her that it is happening because of a bad habit of hers. Watanuki learns more about Yūko while becoming the shop's cook. Himawari-chan and Doumeki both make their first appearance in this episode.

Himawari-chan asks for Yūko's help to solve a series of mysterious incidents occurring at the school, involving a game called angel. Yūko meets Himawari-chan, and Watanuki is forced to work with Doumeki. Doumeki begins to learn about his true nature.

Yūko decides to show Watanuki what a real Diviner can do. Watanuki learns more about Yūko's powers, while his past is explained. The important butterfly symbolism found throughout the series is also explained.

Watanuki and Yūko pay a visit to a client who desires to abandon her addiction to computers.

A rain sprite (Ame-warashi) seeks Yūko's help to save a friend of hers.

A teacher in Watanuki's school gets her hands into a dangerous item from Yūko's shop, the monkey's paw. The teacher's discovery eventually leads to her downfall and of the monkey's paw choking her.

Yūko receives a Pipe Fox as payment from Ame-warashi, while another client with bad habit problems arrives at the shop.

Yūko decides to arrange a ghost stories meeting with Watanuki and his friends.

When a Zashiki-warashi accidentally steals Doumeki's soul, Watanuki has to go after her to get it back, aloof to what are her true intentions.

It's summer and the gang decides to spend some days in a house by the beach. For some reason Doumeki keeps asking Watanuki to call for his help, but he can't figure out why. Unbeknownst to them, there's a ghost lurking inside. When Watanuki discovers this, will he investigate alone?

Watanuki investigates a classmate of his who started to behave strangely since a pair of wings started to grow from her back.

Watanuki and Doumeki meet a pair of twin sisters and even go to a date with them, but Watanuki can't shake the feeling there is something strange about the older one.

The situation involving the twin sisters start to get dangerous as one of them starts to bleed for apparently no reason.

In order to make the Pipe Fox revert to its original form, Yūko sends Watanuki to purify it in a mystical mountain, where he meets the Zashiki-warashi again.

Watanuki brings to the shop a woman with an urge to always take irrational decisions in her choices.

Yūko receives a magic lantern, also called a "ground cherry", and asks Watanuki and Doumeki to take it to a very uncommon festival.

Watanuki and the gang, including the Zashiki-warashi and the Ame-warashi, have an interesting snowball fight.

A desperate customer seeks Yūko's help because she is being haunted by a strange photo that she can't get rid of.

Watanuki ignores some old superstitions and put himself in trouble.

Watanuki meets a beautiful woman and starts to see her every day hoping to soothe her loneliness, but somehow he starts to get sick and can't figure out the reason.

As Watanuki has more encounters with the mysterious woman, his condition worsens and Doumeki decides to intervene.

Watanuki reminisces about his childhood, when he was saved by a boy who became a precious friend of his.