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 kept his promise and went to pick up Fang, who had just successfully concluded the business deal that would bring lots of profits to both Sirocco and Zephyr.

When Ren entered, everyone was just preparing to leave.

"Chairman Ren, your Prince Fang is even more formidable than you when it comes to business!" one of the senior executives of another company remarked with a smile.

"Indeed," Ren said, looking extremely proud. "My Fang is the best."

Everyone laughed and several compliments and greetings were exchanged before parting ways.

Pax shooed Ren and Fang away and remained in office to take care of the rest of the work.

"How was it? Were you able to find out anything?" Fang asked Ren as they drove towards the school to pick up the babies.

Ren nodded. "There should be no more danger to the babies for now; the Blue Wolves have rounded up everyone involved in this kidnapping plan," he said to Fang.

229 – Fang Learns the Truth