What If

It was the Qi Crystal Vein; as long as the vein existed, Qi crystals would keep regenerating. 

Based on the information MingYue knew, the Qi Vein took Qi from the atmosphere and earth and then created a Qi crystal around its area. 

The bigger the vein, the higher its efficiency and the result. 

The Qi Vein was also separated into a few grades, and based on MingYue's observation, this one should be a middle grade. 

A middle-grade vein was capable of growing many medium-grade Qi crystals with the occasional high-grade Qi crystal appearing. 

MingYue knew she had hit the jackpot; even her family in the past had only owned multiple low-quality Qi Veins. 

A medium grade was more than enough to satisfy her and Alex's needs for now. 

"Unfortunately, we cannot move this Qi Vein somewhere else," she mumbled. 

If it were possible to move the Qi Vein, MingYue would have put it in the secret realm.