The sound of grinding stone echoed as the stone door opened wide.
Jeong Yeon-shin naturally lowered his hand, which had been hovering above the groove.
He had already extracted traces of the essence from the threshold of Chun-yeok.
Now, he was creating the key to the essence.
"What did you say?" Heon Won-chang suddenly asked, directing his question at the man who had been discussing the essence of the treasure.
A hearty sneer was etched on the lips of the Grand Master of the Yi Huang.
He had never doubted Jeong Yeon-shin's talent in the realm of internal energy manipulation, even if he had not witnessed the opening of the stone door of Chun-yeok.
"W-what...?" The man, who had been speaking with elegance, stuttered.
He seemed to be hastily examining Jeong Yeon-shin's entire body, trying to find something, but anyone could see that the boy's hands were empty.
He held nothing.
"What trick did you use!" he shouted in panic.
He was someone who lacked the insight to guess Jeong Yeon-shin's method.
"Should we just kill them all?" Dang Ryeo-ryeo stepped forward to ask.
She looked up at Jeong Yeon-shin while fiddling with her sleeves, and the boy recognized the hidden weapon within her sleeve.
She was the noble lady of the Dang family.
Though she appeared demure in front of Jeong Yeon-shin, she had no qualms about drawing her weapon.