From OSTNT:

Two young orphans, without any relatives have been supporting each others for years. During night time they visit graveyards to look for food just for the sake of surviving another day.

One day, the two encountered "Immortals". Due to the girl's talent, she was then taken in by these "Immortals" while the boy was less fortunate and was left behind in the graveyard.

However, the boy's fate has yet to spin its wheel.

From OSTNT:

The Mythical Realm: A world of blood, a world where the strong triumph over the weak, Ye Yun descended to hell to slay hordes of Demons and ascend to Heaven to slay the Gods just to prove his existence as the strongest, a world where a single being can rule over Heaven and Earth.