On the final school day, during a farewell ceremony, the crowded narrow hallways on the top floor experienced a sudden disaster when the railing collapsed under the pressure of the swarming students. Five students plummeted from the seventh floor, they die instantly upon impact with the tile floor below. Amidst the shock and horror, you found yourself on the ground floor, witnessing the grim aftermath, where one of the fallen students (Leo) lay still breathing amidst the lifeless bodies.