After a teacher tragically dies, his friend, who happens to be a former cop, takes over his old job in hopes of catching the people responsible for his murder.铁补天一横心，早已经聚集在心脉的元气就要即时爆发。事实上，在她刚刚醒来的时候，就察觉到了自己处境的危险，早已经做好了准备。