Uncle and brother, are not always distinguished by age; Xin Chen is only fit to be a brother, while Gu Tao could already be an uncle, even though they are closely matched, Xin Chen still has his youthful naiveties, whereas Gu Tao exudes a mature essence characteristic of middle-aged men.
What this mature essence entails, he himself might not even clarify, but once he sits down, even if dressed youthfully, the layers of his age distinctly set him apart.
His every move... is just like an uncle's, he himself feels out of place among these high school students, even though he can join them in discussing games, the major difference is that Gu Tao looks at them as juniors, devoid of any desire to argue.
"Uncle... your acting skills are too poor."
The kitten whispered beside him, "Haven't you ever been young?"