What anime is this??

Question

its an anime with the word "Zero" in the title and i believe its about a girl that attends this magic school but she is not that good...

so when they tried making creatures she accedentally made a human named saijo (i think)

Answer 1

Zero no Tsukaima?

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http://myanimelist.net/anime.php?id=1195

Louise is a magician at the Tristein Academy, dubbed with the nickname "Zero Louise" due to her inability to effectively use her magic properly, resulting in zero successes. An upcoming test at her academy requires her to summon a familiar, a servant and partner to support her as a magician. Despite desiring a familiar that would be superior to her constantly mocking classmates, Louise ends up summoning Hiraga Saito, your average Japanese boy. Even with Louise and Saito both unwilling to accept each other, they have no choice. Louise cannot attempt another summoning and Saito cannot return to Japan, and so their life together begins. Based on the novel by Noboru Yamaguchi.

Answer 2

that picture up there is Code:Geass its on adult swim every saturday night.

Answer 3

I don't know, but if you know the approximate air date, you can go to wikipedia and track it by its air date.

Good Luck!