Thread:MDSiapno001/@comment-26492043-20171204211622

Isn't he categorized as a male character?

This is because in Volume 7's Intermission, Platinum Dragon Lord stated that “My answer is the same. It is difficult. To be frank, the ones who survived thus far are the ones who did not fight the Eight Greed Kings back then. And they are the likes of Heavenly Dragon Lord that kept flying around in the sky or '''Deep Darkness Dragon Lord, who knows what he is doing, holing up in that giant cave underground. '''I can’t imagine these guys lending us aid.”

Platinum Dragon Lord seems to refer to him as a male in the part with "Deep Darkness Dragon Lord, who knows what he is doing, holing up in that giant cave underground." 