Chen Guan spent two million to buy the Eye Light Secret Skill. For most people, the effect of this Secret Skill is negligible, yet it is indeed a very valuable Secret Skill, and a unique item, unlikely to be encountered again.
After using the Eye Light Secret Skill, Chen Guan immediately felt the world was different. Even if someone's gaze accidentally swept over him, he could sense it immediately.
With a consumption of 1.1 Primordial Energy per second, it needs to be active to be effective. For Chen Guan, this consumption is negligible.
The only drawback is that the Eye Light can only sense other people's gaze and the direction it comes from, which is somewhat vague and not particularly precise.
However, for Chen Guan, this is sufficient.
He went to the Elixir and Heavenly and Earthly Treasures area, buying some finished elixirs and treasures, spending nearly ten million overnight, most of which went to purchasing High-Level elixirs.