"Rokun" was a regular teenager who was killed for reasons oblivious to him. He is then revived and transported to another world as a reaper. However, he has amnesia. Unaware of where he is from or who he even is; He makes it his goal to regain his memory. To regain his memories he must become powerful to attract the attention of beings capable of such things. On that Journey, he is faced with many hardships.