Hanjung Wolya (한중월야)

All Jeong wants is a second chance -- for revenge! His grandfather’s gruesome death has transformed him into the bloodthirsty and ruthless Scythe Demon. He will stop at nothing until he has killed the man responsible. Yet rage and determination alone are not enough. He must train in martial arts if he ever wants to stand a chance against such a formidable foe. Will he succeed in his revenge on the murderer of his grandfather?

For as long as he can remember, Woonhwi So has been the black sheep of his family and clan. Because his spirit core has been destroyed, he has no choice but to serve as a third-rate spy for the Blood Cult. One day, during his mission to find the legendary Blade Scroll, he is killed and sent 10 years into the past. When Woonhwi regains consciousness, he realizes that he has been sent back to the day he was kidnapped by the Blood Cult, and that he has gained a mysterious ability to hear the voice of a dagger.

After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon's body, which drastically changes Cheon Yeo-Woon's life after its activation. The story of Cheon Yeo-Woon's journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun.