Producer and distributor Right Stuf describes this series best, so we'll let them take it away:
"Take one totally cute (and naive) ninja-girl trainee, add a ninja horde under the tutelage of a perverse headmaster - a strange, yellow, spherical, pudgy... creature... named Onsokumaru - and you get the kind of "super-explosive ninja insanity" that can only be found in what's been called "the runaway nuclear reactor" of anime comedies!"
Before we get to the trailer, here's a quick list of what you can expect to find in this boxset, which is set to retail at $89.99.
Entire series in one complete collection with scene access, Dolby Digital 2.0 Stereo audio for English and Japanese dialog, English subtitles and English on-screen translations.
Plus: Reversible covers, character bios, interviews with the Japanese cast, TV spots 1-18, textless openings and closing, "Kurukururin" (closing) full-size video, original U.S. trailer and Right Stuf / Nozomi Entertainment trailers.
Also: Four booklets featuring production journals, "Happy Doodles" from the Japanese staff, liner notes and more.
Finally: The Complete Collection - Limited Edition includes a special mini-manga by creator Ryoichi Koga celebrating the box set release, an Onsokumaru squeeze toy and a ninja-trainee headband.