Blue Exorcist

Yukio hands out applications for the whole class to attend a week long boot camp in preparation for their exam to qualify as an Exwire, which is an Exorcist candidate. All the students are to indicate which Meister, or style of fighting, to train for. Igor Neuhaus, a lecturer of the academy, teaches the class how to summon familiars, a rare talent natural to Tamers, and Izumo Kamiki and Shiemi are the only students able to do so. Impressed by Izumo, Shiemi is eager to befriend her, to which Izumo accepts. However, Rin soon realizes Shiemi is being taken advantage of, seeing her run various errands for Izumo out of kindness. When Izumo and her best friend, Noriko Paku, go to the bathhouse, Paku is attacked by a naberius, a type of ghoul. Izumo summons her two white fox familiars, but they turn against her due to her fear. Rin arrives and tells her to tear her summon circles to destroy her familiars. Shiemi treats Paku's wound with her greenman familiar named Nee, while Rin deals with the ghoul until Yukio arrives to shoot it, but it escapes. (Source: Wikipedia)