The Emperor

The Emperor is a character from the novel The Langya List (introduced chapter 1 of the webnovel), the show Nirvana in Fire and the manhua.

He is more than sixty.

Show
In the show, he is named Xiao Xuan ( 萧选, Xiāo Xuǎn ) and appears for the first time in episode 1.

Manhua
He appears for the first time in chapter 4 of the manhua.