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

When Dr. Gordon and Fang came out of the room, they found that Ren was pacing in the corridor outside the room nervously like a worried husband.

Dr. Gordon raised an eyebrow and remarked, "If you wearing down your expensive carpet with your nervous pacing would have been good for Fang's psyche, don't you think I'd have prescribed it for you a year ago, Master Ren?"

Ren scratched his head with a sheepish smile on his face. "Sorry, I was just…" he murmured.

"Just what?" Dr. Gordon asked archly. "Worrying yourself to death and causing Fang even more distress?"

"Ren is not causing me any distress," Fang said loyally, walking up to Ren and sliding an arm around Ren's waist in a possessive manner.

Dr. Gordon rolled his eyes. "Remember that I have assigned you some homework, young man," he pointed out. "Get to work. I'll drop in tomorrow morning to check."

Ren blinked. "Homework?" he asked.

143 – The Warmth of a Family