I’m a Hero, but the Heroines are Trying to Kill Me

After destroying a doomed dark fantasy world and defeating the Demon King, a hero gets sent back to the beginning and resolves to save the world this time. His previous victory came at the cost of destroying everything, leaving him with another chance to change the outcome. With a “System” granted as his regressor’s privilege, he prepares to try again. But the main heroines have also recovered their memories of the previous timeline, complicating his effort to save the world.