Just as the man was strangling him, his nails pierced the gang leader's neck and blood began to ooze out from his neck.Then man on seeing and smelling the blood began to transform, his eye ball changing colour and four tooth elongated from his set of teeth. On seeing this the man immediately threw away the gang leader and left the place immediately. The man who just left was the night scholar also known as scolar Seo yul to the people.
Gong sun concluded the story about the night scholar she was telling her sister also saying how he annihilated the notorious group that sinned against the heaven. She told her sister the night scholar does exist after she was still skeptical about the identity of him. Her sister told her scholar seo yul must be so cool then since she's comparing him to the night scholar. Gong sun told her sister she'll be able to meet the night scholar sometime soon as long as she continue wringing about the night scholar while her sister helps in the drawing aspect of the story. She'll be able to sell more of the night scholar book and take her sister to Tamna province to fix her leg after she makes tons of money selling the books.
She always have a depressed feeling whenever she sees her sister cooped up at home not able to walk around because of her leg which drove her towards making that promise and she was determined to fulfill the promise she made to her sister.