Jaywalker_Holmes

Ren, a modern doctor and a secret master magician, suddenly finds himself inside a random book he picked up at the airport...as the villainous older brother of the protagonist. As the bad guy, he's supposed to make life difficult for the Male Lead until the latter grows up and kills him in revenge. However, looking at the broken teenager in front of him, Ren can't help but feel his heart soften. 
Fang was an orphan who had never known what a family is. Abandoned at birth, all he knew was pain and fear. He loved nothing, and wanted nothing...until he saw the angelic Wade. To save Wade, Fang didn't hesitate to sacrifice himself. ..after all, there was no one to cry over him.
But then, Ren appeared and turned his world upside down.

The Villain Saves the Male Lead

Ren almost dropped the pictures in shock, but then held on to them tightly. If these were indeed the parents and the older sister of his Fang, then Ren had no idea how to break the news about this to Fang at all.

Ren looked at Wolf. "Are there no records of a second child of the crown princess of the Valley Kingdom and the prince of the Dragon Nation?" he asked quietly.

Wolf shook his head. "None at all," he said quietly. "We're still looking, but at the moment, there is nothing at all."

Ren frowned. "It is impossible for Fang not to have a biological connection with the crown princess of the Valley Kingdom and the prince of the Dragon Nation – and their daughter – Wolf, you can see clearly that she is almost a replica of Sylvia's human form, and Sylvia takes after Fang. Just from their faces, isn't it clear that Fang is their son…?" he asked in a faint whisper.

150 – Speculations