Devil Lords vs the Blood Duke

In the sky above the Blood Fortress, a mind-blowing battle was occurring. 

A ten-meter tall man with red skin and massive horns fought against a woman with bone spikes and a giant fire snake.

Hundreds of massive buildings became debris due to the fight. If it weren't for the space fortification, the fortress would have collapsed, and maybe even the entire dimension.

Both the woman and the fire snake were extraordinarily fast and agile. Their bodies' movement carried a momentum that could compare with the might of a Rank 6 life form. 

The Runic Spirits were both crazy, and everything in their sight was an enemy they had to kill. The only reason they worked together was that, at an instinct level, they recognized the Blood Duke as an absolute threat. 

Despite being two against one, the Blood Duke was utterly dominating the battle. The Runic Spirits' attacks could not pierce his skin, and other than some bruises, he had no injuries at all.