you had lost your diary... that diary could easily ruin your life if anyone in the school read it... any student could make fun of you for it... having entry's like "I have become so good at hiding my emotions, I could be crying in my room and then next second wipe those tears away and go make people happy" things like that... you started to panic when you heard a knock at your dorm door. It was aizawa.. your teacher...... he was holding the diary...