The Familiar of Zero ("Zero no Tsukaima") is a light novel series by Noboru Yamaguchi about an incorrigible tsundere.

Zero no Tsukaima screencap(?)

The Familiar of Zero (Zero no Tsukaima) is a fantasy and comedy series which started as a light novel (by Noboru Yamaguchi) and was adapted into a manga and anime. It takes place in a far-off land and follows a young but seemingly-incompetent magician, Louise de La Vallière, and Hiraga Saito, her summoned familiar, a young boy from Earth.

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