
Tsubasa/xxxHOLiC Project A 4 part OVA released with the limited editions of the Tsubasa and xxxHOLiC volumes. There are two OVAs for each series, with plots linked together. They cover the Nihon Country Arc and scarcely some of the Celes Country Arc. (Source: Official Project Website)
Tsubasa: Shunraiki is a Japanese anime of 10,153 characters, with 1,348 unique words and 714 different kanji. Its difficulty rating on Jiten is hard, 3.6 out of 5. The full vocabulary list ranks all 1,348 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.