Hilary Cervantes is a junior detective. She studies in Trinity High School in Herlucke. Multiple murder cases that appeared to be connected in each and every way but they can't figure it out, just yet. Meanwhile, a man that goes by the name of Blade is said to be on the loose and currently studying in their school. An individual murder case that is originally connected is increasing, dead bodies found from time to time, suspects killed, who is the mastermind behind those crimes?