Assassin on Assignment

This is my story, I've had it for a while. It's about two high school girls, Yasuna the airhead and Sonya the assassin. Sonya, gets a note saying to go the empty classroom, which is the room that Agiri the ninja appears in in the 1st episode. (Sadly, I didn't put her in this story) Anyways, the note says to bring Yasuna with her. I'm not going to spoil the rest of this story for y'all, so
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