Ada chuckled and said, "The essence of everything...is contradiction, Su Yu, you've hit the nail on the head for once."
Su Yu, unable to refute her, conceded, "Alright, alright, you're right. What I want to know now is not what a god is. What I want to know is about this Netherworld skull, how can we utilize it?"
Ada replied, "It's rumored that after the fall of the Netherworld, the bones of the god were scattered in all directions. I doubt this rumor. In my opinion, I suspect that after the Netherworld creature died, only this skull was left. As for how to use it... Isn't it obvious? Replace the skull in your head with this Bone of the Netherworld... This is exactly what bone trade-in means."
Feeling a chill, Su Yu listened as Ada continued, "Of course, don't think this is easy. Given your current level...trying to fully absorb this Netherworld skull and replace the skull with the Golden Bone... it's not as simple as absorbing the 'Golden Blood'."