|Puru Puru Pururin|
|Type:||Show within a Show|
|Tittle||N.H.K. ni Youkoso!|
|Created by||Tatsuhiko Takimoto|
|Years on Air||2006|
Concept / PlotPuru Puru Pururin (プルプルプルリン?) is a fictitious magical girl anime in the real anime "N.H.K. ni Youkoso!" which Kaoru Yamazaki is a fan, featured only in the anime version. It is never explicitly stated, but strongly suggested, that Satō believes this series to be controlled by the N.H.K.; in fact, it is after seeing an episode of the series which inspires him to think up the N.H.K. as a concept. The series has a real web-site, which further suggests this. For example, although it appears to be a children's style of series, the schedule on the website suggests that it is shown almost daily in the small hours of the morning, when children would not be awake, but hikikomori frequently are. Although the website lists the names of several real-world broadcast channels which supposedly carry the show, none of them are operated by the real-world NHK, again suggesting that in the anime's version of Japan, the N.H.K. is not a broadcasting company and is a conspiracy spanning all media. The listed broadcast times and channels are in fact the times at which the Welcome to the N.H.K. anime aired.
Only brief excerpts of Puru Puru Pururin are ever seen, and it is not possible to guess what powers the main character, Pururin, would have. It appears that Pururin is a good, heroic character and is assisted by a number of animated household objects, including a vacuum cleaner upon which she flies; her trademark is to randomly append the word Purin to the end of sentences, similarly to the title character in Di Gi Charat. The theme song first heard in the first episode is sung by Rumi Shishido. This theme appears in ringtone version throughout the series.