The martial world had already lost its war against the monsters pouring out of the Demon Realms.

With humanity facing extinction, Baek Woon and his surviving comrades placed their hopes in one desperate gamble: turning back time.

He woke up as his fifteen-year-old self, long before he had the strength, reputation, or resources to fight the coming catastrophe. But his memories remained, along with the martial arts and hard-earned knowledge of his previous life.

If he could grow stronger fast enough and change the right events, perhaps this time the world would survive.

His second chance took an unexpected turn when he crossed paths with Na Yerin, the legendary Plum Blossom Sword Empress of the Mount Hua Sect, and became her disciple.

Demon Realms, ancient martial arts, sect rivalries, dangerous secrets, and an increasingly complicated love life awaited.

Baek Woon had returned to save humanity. The future, however, was not going to follow his plans.