Yeon Jeokha had to suffer years of abuse from his father's first wife for being the favored second wife's son. His fortunes change upon finding a mirror with a spirit who teaches him the Nine Heavens Sword Art, a powerful technique his father created. After an arduous decade of training, he successfully escapes and heads to the mountains, where he joins the Obong Outlaws as their strongest member. But he soon learns that the stronger he gets, the more enemies and rivals are bound to follow... (Source: Tapas)

Kang In-Young, betrayed by his friend and his lover, is framed for murder and is thrown into prison. There he meets a fellow prisoner, an old man who used to be a petty thief. Turns out he stole a secret martial art from JeonJin sect, and to escape their pursuit, he intentionally broke the law to enter the prison and spent 30 years honing the secret martial skills. Tragically the old man catches a plague-like disease and is going to die… but after observing Kang, he decides to make him his heir and gives him the secret martial arts. 10 years after the old man's death he fully masters the secret art…