The Familiar of Shana (Shakugan No Shana/Zero No Tsukaima Crossover) Vol 1

Meet Shana, a student at a magician academy who is constantly bullied because of her poor efforts at success. When she summons a servant known as a familiar for a test, she happens to get a Japanese guy named Yuji Sakai for her familiar. It’s difficult to say who is more surprised and dismayed, but the rules don’t allow for second attempts. Shana is stuck with her strange familiar, and he with her.