since the day many things happen the only thing to bring back everything was to go back in time and change the future. But that could only work if something was controlling the past and future. We all know that we aren't a god to do such a thing but it was amazing that two boys could do it. Kashi was one of the loneliest girl that trust her tactics in fighting to prevent herself from getting bullied. She was recognized as the former name Hideki the unknown girl who did massacre in a single attack.