Lifting his hand, Hiroshi Tamura pressed it against the door that was fused with the barrier, using his own extraordinary control to manipulate chakra for meticulous sensing, and even consuming the Power of Destiny to activate his Golden Finger's ability to enhance comprehension.
Taking extraordinary chakra control as the foundation, coupled with his understanding of sealing techniques and the cheating power of the Golden Finger, he finally figured out the opening mechanism of this barrier after spending three minutes.
Instead of forming hand seals, he took Minato Namikaze's blood and fused it with his own chakra, forming fine, hair-thin lines of blood that merged into the door, using meticulous control to break it from the most basic formula level.
This was a common anti-theft method in the ninja world, much like how summoning contracts required a dual authentication of blood and chakra, so relying solely on hand seals here was unsafe, otherwise anyone could enter once they leaked.
To put it bluntly, the hand-seal method was like the password system of a safe from his past life, followed by blood, eyes, fingerprints, and other methods working together; the more types, the safer it was.
Blood was most commonly used here in the ninja world because it was the only thing on a ninja's body that could react perfectly with chakra, which was why he had preserved Minato Namikaze's blood from back then.
After busying himself like this for nearly ten minutes, the door and barrier finally opened.
Without entering immediately, he extended chakra threads inside to sense and probe, and only entered after making sure there were no problems.
The two of them locked onto the sealing scroll placed on the desk right away, though it was still protected by a layer of barrier.
Besides that were two rows of