Betrayal... That's what the 27 year old military officer, Takamura Daichi experienced when he was shot to the head by his own best friend and fellow soldier, Asakura Kuzuki. Expecting his death, Daichi was shocked when he was reincarnated into the body of a 15-year-old boy, Hanazono Haruto, 15 years to the future. With this newfound opportunity, Daichi now Haruto will stop at nothing to get his revenge on his killer, using whatever means necessary to make sure that the snake Kuzuki will die the most painful and humiliating death... No matter what the cost.