More importantly, beneath the ground here, Ōtsutsuki Isshiki could clearly sense an extraordinarily complex flow of energy! That was far beyond the scale of energy any ordinary basement or warehouse could contain.
"The entrance... should be somewhere among these buildings." Ōtsutsuki Isshiki carefully scanned the foundations of each building and the ground with his Byakugan, searching for a passage underground.
Soon, he found his target! In a seemingly ordinary warehouse, a massive metal hatch lay in the center of the floor. It was made of Rōran Special Alloy, more than thirty centimeters thick and weighing over five tons. An ordinary person could never have opened it, but for Ōtsutsuki Isshiki...
"Sukunahikona."
He reached out and lightly touched the metal hatch. In an instant, the alloy hatch weighing several tons shrank to the size of a fingernail, and Ōtsutsuki Isshiki easily moved it aside. Then he released the jutsu formula, and the hatch settled silently onto the ground beside him without making a sound.
Beneath the hatch was a vertical metal shaft, with Energy Rails embedded in its walls! They were the tracks of a zero-gravity elevator, with no physical cabin, only a flow of energy that enveloped passengers and moved them up and down.
Ōtsutsuki Isshiki frowned slightly. This kind of elevator required specific identification to activate. Without Rōran identification credentials, he could not use it.
"Then I'll do it the hard way."
He leaped into the shaft, lightly tapping his feet against its walls to dissipate the force of his fall, then slid down silently. His fingertips brushed lightly against the shaft wall, controlling his speed to ensure he made no sound.
The shaft was deep! It extended at least fifty meters underground.
When he reached the bottom, a straight, brightly lit corridor appeared before him. Smooth alloy walls