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 Rudy finally brought Ren and Fang home, everyone else was already up, and the ice cream they had bought was gone before they could say 'ice cream' (or 'happy birthday' for that matter).

Rudy, who had assimilated himself on Ren's phone as well, was introduced to his corporeal siblings – one human baby and three furballs. The amazing thing was that Rudy could actually converse with the furballs as if they were speaking normally.

Ren didn't understand how Fang had managed to achieve this – only people with magic could communicate with their three baby furballs – so how was Rudy, who had nothing to do with magic, able to do so as well?

To be honest, Fang didn't know the answer, either.

Ren wondered if Fang had accidentally infused some of his magic into Rudy when creating him, and thus, Rudy had developed his own independent existence as well as magical features…

In any case, Ren was quite pleased with the outcome and had no complaints either way!

173 – Birthday Lunch