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

Dr. Gordon looked at them blankly. Ren allowed himself to be examined by the middle aged doctor, and was declared fit enough.

Ren indeed felt much better now after the three furballs had drained his excessive magic. And Fang felt better now that they knew what the problem with Ren had been...and that it could be treated.

Snow, Smoke and Shadow sat obediently and quietly while Ren was being examined. As soon as Dr. Gordon left, though, they pounced on Pax.

Pax looked at Ren and Fang blankly as three childish voices burst into his mind.

"You're not hallucinating," Ren said with a chuckle. "They really are speaking with you."

"How...?" Pax couldn't even formulate a question properly.

Ren chuckled. "Well...I supposed it's time I share yet another secret with you..." he said, and quickly explained about his magic and the magic surge he'd been experiencing.

59 - Magic Surge