Dan Seol-Young breathed a sigh of relief upon seeing Baek Mu-Gun. However, she soon grew concerned if he could deal with more than twenty masked men alone.

She heard stories about the Thunder God’s successor from Cheon Yu-Hwa. According to her, the Heavenly Thunder God’s Swordsman Guyang Hwi, the predecessor of the Thunder God’s successor, possessed such powerful martial prowess that it was difficult to find anyone able to rival him before he could even turn thirty years old.

Even though Seol-Young thought the Thunder God’s successor could handle this much, she couldn’t help but be worried because of Mu-Gun’s young age. On the other hand, Mu-Gun’s sudden appearance flustered the masked men.

The man standing in Seol-Young’s way also felt anxious about the unknown figure’s unexpected appearance. However, he calmed down upon realizing Mu-Gun looked to be in his twenties and that he was alone.

“Who are you?” the man asked Mu-Gun.

“I should be the one asking that question. Who are you, where did you come from, and why you are aiming for the Heavenly Secret Hall?”

“What an ill-mannered brat.”

“You don’t seem to know a lot about murim. In this world, age isn’t important. All that matters is the martial arts you possess.”

“Are you saying your martial prowess is higher than mine?” The man replied, dumbfounded.

“Why don’t you confirm it yourself?”

“I find no need for me to do so. My men are more than enough.”

“We’ll see about that,” Mu-Gun commented with a smirk.

“You little brat, how dare you act so arrogant!”

When Mu-Gun belittled them, the masked men charged at him,...