Dead Sun

Shi Situ, a man who once was revered as the Dead Sun a long time ago, but has fallen and completely disappeared only to be replaced by the Darkest Sun.

The origin of the story is known only to a select few among them the Wisest and Lording Suns. Even the rest of the Suns only know him by title and the Blue Sun has no idea of his existence at all due to her being the youngest.

He once ruled with the same power as the current suns owning a massive territory that has been completely uplifted once his pursuit of strength went a tad too far.

He was obsessed with immortality to the point that he would try and use any method or means to achieve it. He feared death so much that he experimented on himself and his closest to the point of diving into the wheel of reincarnation and back.