Frieren: Twin Souls

Cover by https://www.deviantart.com/linredliner

The story is based only on the anime and its concept was created before the announcement of season 2, so when it comes out, many things may be incorrect.

Four heroes from ancient times, four Twin Souls connected by a common destiny. come back to life to stop a secret organization of demons called the Shadow Blades, which consists of five extraordinary demons that are shrouded in mystery even among their own, who have been subtly influencing the fate of the world for hundreds of years. Now they want to bring the Demon King back to life, but they do not do it out of the goodness of their hearts, but want to use him as a puppet, giving their orders with his mouth. But it's very possible that they have another, darker purpose.

The heroes of the stories are:
Himmel: A man who participated in the destruction of the Demon King.

Flamme: The most powerful human magician in history.

Fauna: An elven healer with extraordinary potential who lived over 2,300 years ago.

Menno: A man who served the Shadow Blade for over 2,300 years. Many elves, humans and even demons died at his hand, which is why he was called the Shadow of Death

To save the future, the four must deal with their past and their mutual dislike. Because only together can they win.