The 1 season of The Familiar of Zero was broadcast on CTC (JA) from lundi 3 juillet 2006 to lundi 25 septembre 2006. It consists of 13 episodes, the first one is called "Zero Louise" and the last one "Louise The Void".
Meet Louise, a budding magician. The students at the Tristein Academy call her "Zero Louise", due to her current record of zero successes with magic. In fact, her magic tends to go spectacularly wrong. Now, as an important test of her aptitude for magic, she must summon a familiar to be her servant. At this critical moment, she summons up all her magic and wishes for a familiar that is "devoted, beautiful and powerful", and gets... Hiraga Saito, an ordinary Japanese boy. It's difficult to say who is more surprised and dismayed, but the rules don't allow for second attempts. Louise is stuck with her strange familiar, and he with her.