Seirei Gensouki: Spirit Chronicles

Seirei Gensouki: Spirit Chronicles (精霊幻想記, Seirei Gensōki) is a Japanese light novel series written by Yuri Kitayama and illustrated by Riv. It began serialization online in February 2014 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Hobby Japan, which has published eighteen volumes since October 2015 under its HJ Bunko imprint. A mangaadaptation with art by tenkla was serialized online via Hobby Japan's Comic Fire website from October 2016 to February 2017, being discontinued because of the artist's poor health. A second manga adaptation with art by Futago Minaduki has been serialized online via the same website since July 2017 and collected in five tankōbon volumes. Both the light novel and the second manga have been licensed in North America by J-Novel Club. An anime television series adaptation by TMS Entertainment premiered in July 2021.

Plot
Amakawa Haruto is a young man who died before reuniting with his childhood friend who disappeared five years ago. Rio is a boy living in the slums who wants revenge for his mother, who was murdered in front of him when he was five years old. Earth and another world. Two people with completely different backgrounds and values. For some reason, Haruto, who should have died, is resurrected in Rio's body with his own memories and personality. As the two are confused over their memories and personalities fusing together, Rio (Haruto) decides to live in this new world. Along with Haruto's memories, Rio awakens an unknown “special power," and it seems that if he uses it well, he can live a better life. But before that, Rio encounters a kidnapping that turns out to involve two princesses of the Bertram Kingdom, in which he lives.