Ji Yuan had spent many years in the Ancient Battleground of the Fallen Gods where he defeated numerous void creatures.
His party was extremely strong and he had the assistance of Yun Chi, the Dark Goddess Destiny, Ding Xiaoxiao the former Number 1, Bai Qianfeng the Abyssal Null Goddess and the Philosopher Goddess.
In the Ancient Battleground, Ding Xiaoxiao was back to her peaked 9th immortal cultivation realm and only a Void Sovereign could possibly fight her on equal footing.
Both Bai Qianfeng and the Philosopher Goddess were both at the 9th cultivation realm and they were stronger than what Ji Yuan was expecting.
As for the Dark Goddess Destiny and Yun Chi, both of them were True Divinities. Yun Chi was at the half-step True Divinity. During the years in the Ancient Battleground, she had managed to find the lucky opportunity to become a full-step True Divinity.
