The Core Formation realm is one of the most important turning points in a cultivator's journey. It is the realm where you form a core inside your body, also called a dantian.
Even geniuses have to be very careful while forming their dantian; a single mistake can cost them serious injuries or their life.
This is also the step where most cultivators die.
Jiang Hao wasn't overly worried though, as he or Ming Yue could open their dantian without even focusing on it, as their physiques would handle that.
Ming Yue sat in the middle and started absorbing qi. She didn't have to move it towards her dantian area, as her physique was doing it for her.
She just waited for it to complete. While absorbing spirit qi to reach saturation.
The amount of qi required for opening a dantian is quite high, so she had to wait for some time.
