Bruno, a dedicated biomedical scientist who devoted his life to cancer research, meets a tragic end after making a groundbreaking discovery that could have changed humanity. But death, it seems, is only the beginning of a new journey.

Reborn as Kiyoshi Hyuga in the incredibly diverse world of Naruto, Bruno is given the opportunity to live a completely new life. He finds himself in a world where ninja power and combat skill are as essential as the scientific knowledge he possessed in his previous life.