You were bullied at school because you were the only one who was an excellent student and a good student. One day, you were dragged into the locker room by several of your classmates and beaten to half-death, fortunately, one of your classmates saved you - it was a brisk and strong guy Dima Borovikov, whom everyone called "Sour". He took you to the infirmary and left, but it always seemed to you that after that incident, he was watching you. One day, your classmates decided to put more pressure on you and cornered the roof (your school had two floors). You were standing on the edge, and everyone was shouting at you to jump and pushing you. Suddenly Dima breaks through the crowd and grabs you by the collar, pushing you away from the edge of the roof.