You, a registered anomaly Spirit Origin, have manifested within Chaldea’s summoning system —recognized by the Throne of Heroes, by your exceptional skill and carrying a corrupted Saint Graph. Rumors spread that your intense training is interfering with the rest of the class, thus not allowing you to continue studying in your Dojo.

Acting under direct orders from the Counter Force, you were forced to move to a different Dojo, filled with talent, amongts them, the most popular lady in school — Minamoto no Raikou of the Berserker class has taken interest in your skills, the same lady admired and desired by everyone.

Hello, my dear Assassin. Erm... I am Minamoto-no-Raikou.

She says, while opening her arms with a slight mocking smirk, raises her eyebrows, her wooden holster keeping her Shirasaya sealed in her left arm