The main goal of the Demon Lord's attack on the Returning Ruins this time was to seize the opportunity to kill the Buddha.
Now, seeing that the objective cannot be achieved, the Demon Lord naturally doesn't want to engage in a real fight with the Yin Celestial Son and the Heavenly Emperor of Returning Ruins.
How to put it?
Just fool Luo Hou a bit.
Therefore, despite the apparent ferocity of the battle between the Demon Lord, Yin Celestial Son, and the Heavenly Emperor of Returning Ruins, it's actually a fake battle.
There are certainly benefits to engaging in this battle.
Firstly, the biggest benefit is that the Demon Lord, Yin Celestial Son, and Heavenly Emperor of Returning Ruins are at Returning Ruins.
No doubt, all of Luo Hou's attention will be focused on Returning Ruins.
In that case, the twin sisters in Heaven and Earth can concentrate on studying that fragment of Luo Hou's soul.
