Louise Françoise Le Blanc de La Vallière’s name is so long and her spell-casting skills are so poor that everyone at the Tristain Academy of Magic just calls her “Louise the Zero.” Louise’s humiliation only increases during an important second-year test, she inexplicably summons Saito Hiraga, a totally normal teenager from Tokyo. Now she’s stuck with him and Saito’s stuck with the lousy life of being a familiar.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Louise the Zero | 2006-07-03 | 25 min |
| Season 1 | Episode 2 | The Commoner Familiar | 2006-07-10 | 25 min |
| Season 1 | Episode 3 | The Subtle Heat's Allure | 2006-07-17 | 25 min |
| Season 1 | Episode 4 | The Maid's Crisis | 2006-07-24 | 25 min |
| Season 1 | Episode 5 | The Princess of Tristain | 2006-07-31 | 25 min |
| Season 1 | Episode 6 | The Thief's True Identity | 2006-08-07 | 25 min |
| Season 1 | Episode 7 | Louise's Part-Time Job | 2006-08-14 | 25 min |
| Season 1 | Episode 8 | Tabitha's Secret | 2006-08-21 | 25 min |
| Season 1 | Episode 9 | Louise's Change of Heart | 2006-08-28 | 25 min |
| Season 1 | Episode 10 | The Princess' Request | 2006-09-04 | 25 min |
| Season 1 | Episode 11 | Louise's Marriage | 2006-09-11 | 25 min |
| Season 1 | Episode 12 | The Zero Secret Treasure | 2006-09-18 | 25 min |
| Season 1 | Episode 13 | Louise of the Void | 2006-09-25 | 25 min |
| Season 2 | Episode 1 | Her Majesty, the Queen's Zero | 2007-07-08 | 25 min |
| Season 2 | Episode 2 | The Vow of Wind and Water | 2007-07-15 | 25 min |
| Season 2 | Episode 3 | The Cleric's Sword | 2007-07-22 | 25 min |
| Season 2 | Episode 4 | The Three Vallière Sisters | 2007-07-29 | 25 min |
| Season 2 | Episode 5 | The Spy's Seal | 2007-08-05 | 25 min |
| Season 2 | Episode 6 | The Queen's Vacation | 2007-08-12 | 25 min |
| Season 2 | Episode 7 | The Underground Secret Document | 2007-08-19 | 25 min |
| Season 2 | Episode 8 | The Magic Institutes's Crisis | 2007-08-26 | 25 min |
| Season 2 | Episode 9 | The Atonement of Flames | 2007-09-02 | 25 min |
| Season 2 | Episode 10 | The Enemy on Snowy Alps | 2007-09-09 | 25 min |
| Season 2 | Episode 11 | The Silver Pentecost | 2007-09-16 | 25 min |
| Season 2 | Episode 12 | The Farewell Wedding Ceremony | 2007-09-23 | 25 min |
| Season 3 | Episode 1 | The Familiar's Mark | 2008-07-06 | 25 min |
| Season 3 | Episode 2 | The Elf of the Forest | 2008-07-13 | 25 min |
| Season 3 | Episode 3 | The Return of the Hero | 2008-07-20 | 25 min |
| Season 3 | Episode 4 | The Rumored Accepted Student | 2008-07-27 | 25 min |
| Season 3 | Episode 5 | The Alluring Women's Bath | 2008-08-03 | 25 min |
| Season 3 | Episode 6 | The Taboo Magical Potion | 2008-08-10 | 25 min |
| Season 3 | Episode 7 | Slepnir Dance Party | 2008-08-17 | 25 min |
| Season 3 | Episode 8 | The Eastern Pursuit! | 2008-08-24 | 25 min |
| Season 3 | Episode 9 | Tabitha's Sister | 2008-08-31 | 25 min |
| Season 3 | Episode 10 | Border Mountain Pass | 2008-09-07 | 25 min |
| Season 3 | Episode 11 | Captive in Al Hambra | 2008-09-14 | 25 min |
| Season 3 | Episode 12 | Wings of Freedom | 2008-09-21 | 25 min |
| Season 4 | Episode 1 | Louise of the Holy Kingdom | 2012-01-07 | 25 min |
| Season 4 | Episode 2 | The Maidens of Aquileia | 2012-01-14 | 25 min |
| Season 4 | Episode 3 | The Insanity of the King of Ignorance | 2012-01-21 | 25 min |
| Season 4 | Episode 4 | The Queen's Reward | 2012-01-28 | 25 min |
| Season 4 | Episode 5 | De Ornielle's Maidens | 2012-02-04 | 25 min |
| Season 4 | Episode 6 | A Chaotic Hot Spring | 2012-02-11 | 25 min |
| Season 4 | Episode 7 | The Elf of the Desert | 2012-02-18 | 25 min |
| Season 4 | Episode 8 | Escape Through the Sewer | 2012-02-25 | 25 min |
| Season 4 | Episode 9 | Tabitha's Coronation | 2012-03-03 | 25 min |
| Season 4 | Episode 10 | Awakening of the Disaster | 2012-03-10 | 25 min |
| Season 4 | Episode 11 | Louise's Choice | 2012-03-17 | 25 min |
| Season 4 | Episode 12 | The Familiar of Zero | 2012-03-24 | 25 min |
| Visual Effects | Yukiko Tadano | Color Designer |
| Camera | Shingo Fukuyo | Director of Photography |
| Directing | Yoshiaki Iwasaki | Series Director |
| Visual Effects | Kyousuke Ishikawa | Color Designer |
| Sound | Shinkichi Mitsumune | Music |
| Editing | Masahiro Goto | Editor |
| Art | Yoshinori Hirose | Art Direction |
| Visual Effects | Masahiro Fujii | Character Designer |
| Sound | ICHIKO | Theme Song Performance |
