C1391 Undead King

"Seems like I really have to kill and devour four-star undead to break through."

After killing and devouring many undead, Murong Yu helplessly confirmed his guess. No matter how many Three Star Undead he devoured, his Soul Pool never grew in size.

"Absorbing a four star undead should be able to help me break through the three star soul realm. Only, a four star soul is too powerful