Lu Song

Duan Ling Tian raised a brow when a pang of realization suddenly dawned on him.

Big brother?

That grey-clad young man called himself 'big brother' in front of Lu Bai?

"Lu Song!" Soon after, Duan Ling Tian put the puzzles together and guessed the identity of this grey-clad young man.

In the Lu Clan, the only person who could address himself as 'big brother' in front of Lu Bai could only be Lu Song, the First Young Master of the Lu Clan. He was also Lu Bai's sworn enemy, the stumbling block that hindered Lu Bai from becoming the next Clan Leader of Lu Clan.

Moreover —

"I heard from others that Lu Huai, the Third Young Master whom I killed, was Lu Song's younger blood brother!"

Blood brother! That meant they were siblings with the same parents!

The gaze he used to look at Lu Song was instantly filled with a hint of vigilance.