His Eye of the World and Infinite Brain were in their element in a place like Da Yu's Treasure Vault, where he could put them to full use. No treasure's secret could be hidden from him, and he wouldn't miss even the slightest opportunity to find an overlooked prize.
Da Yu conducted a strict five-dimensional assessment before granting a Treasure Vault terminal.
Adhering to a principle of personalized access, Da Yu's Treasure Vault terminals are assigned different permission levels: D, C, B, A, A+, S, and S+, for a total of seven tiers. The higher the permission level, the more items one can purchase.
The highest-grade item redeemable with a D-level terminal was merely B-grade Sea Beast Blood.
Those with A+ permission or higher could personally visit Da Yu's Treasure Vault to select and redeem treasures. This in-person selection was free only once; a second visit would cost an additional 1,000 Contribution Points.
Only a dozen or so people possessed S+ level permission.
