12 episodes
When 20-year-old college student Haruto Amakawa dies in a traffic accident, he does not expect to wake up in an unfamiliar world in the body of a young boy named Rio. As their memories and personas fuse, Rio realizes that he now also possesses magical powers. He is relieved to find that his burning passion for revenge against his mother's murderers has not subsided, despite his newly changed identity.
See season 1 details12 episodes
After Rio escapes the capital of the Beltrum Kingdom with his former teacher Celia Claire and his bond spirit, Aishia, he finds himself in a dire situation once again. As it turns out, multiple people from his past life in Japan are suddenly scattered around the new world. Rio rushes to their help, saving a small group and taking them under his wing.
See season 2 details