Ten years ago, Sara Reece and her classmates were summoned to another world to fight the demon army. Then, after suffering hardship, loss, and betrayal, she became the Hero and slew the demon king—only to wake up on Earth on the day of the summoning as if it had never happened. Determined to get back everything she lost from the time loop—and everyone who died in her last life—Sara returned to the other world to become the hero once more. But this time, people would do things her way.