Even a tiny Katsuyu clone possessed far greater life force than an ordinary person.
More importantly, Katsuyu could slowly recover her life force, eliminating the need to waste a life to open the Netherworld Gate!
"We sent a group of researchers into the Netherworld Gate and discovered something very strange."
Orochimaru did not explain immediately. Instead, he made an inviting gesture, intending to accompany Uchiha Yū into the passage. Only by seeing it with their own eyes could they discover its wondrous aspects.
"Teacher has left me in suspense. I also want to see what it looks like inside."
It was certain that a stable Netherworld Gate would not produce monsters, reducing the dangers of the experiment to the minimum. Orochimaru would not gamble with either of their lives.
The moment they stepped inside, Uchiha Yū activated his Sharingan. The dark-purple passage was made up of layer upon layer of halos.
Unlike ordinary space-time ninjutsu, the Netherworld Gate was more like opening a passage that connected two locations before transporting someone between them.
A strange glint flickered in his eyes as Orochimaru smiled and said with certainty:
"We can confirm that we are currently in the underworld. The only thing we have yet to understand is what it looks like outside."
As soon as he finished speaking, Uchiha Yū paused. He turned to stare at Orochimaru and rejected his proposal.
"We can be certain that monsters will rush out. And this barrier is not as sturdy as imagined. Last time, I shattered it with a single punch, which alerted some monsters outside."
They both knew the origin of the black severed hand. If the passage could not be closed in time, more and more such monsters would appear, eventually threatening the shinobi world.
Uchiha Yū worried that a mad scientist