Uncle is a Madman

Having lost her mother, Eun Sowol was on the verge of starvation. That's when a man claiming to be her uncle appeared, barely saving her life. But then. "Wait a minute! Isn't that Gwangryong!" "Gwangryong as in… the undefeated fixer?!" Her uncle was that 'Gwangryong'? Eun Sowol knew who Gwangryong was. He was the crazy bastard from <The Return of the Namgung Clan's Youngest Son> that she had read in her past life! In the original story, Gwangryong was famous for his cruel and merciless methods, and he eventually earned the infamous title of 'Mad Demon' after destroying the Dokgo Clan with his own hands. And the reason he went mad was because of his 'dead niece.' Wait a second. The...