Simultaneously with the bell signaling the start of class, a low rumble vibrated through the floor beneath my feet. I turned to see the thick doors of the shooting range slowly closing. What? When did the time… I’d been so lost in thought that I hadn’t realized it wasn’t just the cold winter air that had been sealed inside. The two instructors for the cross class, along with all the students from Guide Class 3 and Esper Class 1—about thirty people in total—were now lined up in formation. A wave of tension washed over me as I prepared to face the impending accident among them.