After they completed their missions, they would probably have more credits in their account and would definitely come back to buy more.
It was mainly a long-term plan.
At this rate, in less than a year, Lu Yuan would be able to buy another powerful transcendent gene.
Lu Yuan was satisfied with this.
Thus, Lu Yuan continued his peaceful life.
The requirements for refining the Mechanical Control gene were higher than that of the light of life gene. It also required more spirit crystals.
Two months later, Lu Yuan entered the Land of Origin eight times again and absorbed about 1.2 million Level 5 spirit crystals. His mechanical control tempering degree had reached 95%.
The last 5% required even more spiritual energy. Lu Yuan guessed that he would need about 200000 to 300000 level five spirit crystals to complete the tempering.
In total, it was about 1.4 to 1.5 million Level 5 spirit crystals.