Returner's Defiance

Five hundred years of fighting demons and humanity has been pushed to the brink of extinction. As the last bastion of the remaining humans is shattered, Bran Heros, the Wandering King, decides to enact a last ditch effort. He’s going to send his soul back in time to two years before the demon invasion comes to earth. This time when the demons first come he’s going to be waiting. He might not be as strong as he was in his past life, but he has something far more important.

Bran is about to face the Hero’s Clan initiation, ready to unlock the legendary bloodline he’s always craved. But nothing goes according to plan. Instead of a smooth ascent to power, Bran is forced into the spotlight when one catastrophe leads to another, threatening the lives of every new recruit. Hiding was never his strong suit, but now it’s impossible. To save his clanmates, Bran steps out of the shadows—only to uncover a long-forgotten branch of the Hero’s Clan, one that was erased from history in his past timeline.

Bran returns to Vein City to find Gloria jealous that he came back with Nyx and Circe. While trying to solve that, Vincent becomes even pushier about entering the Vault. When going to open it, Bran discovers that this life has changed yet again. For whatever reason, they had gotten perilously close to cracking the Vault on their own and drawing all the future heroes of the First Demon War in a demonic trap. It's up to Bran to make sure they all make it out alive while reaping as much reward as he can from the Vault.