Still, they knew business came first, so Naruto headed back to tell Boruto and Neji to gather here.
"There really is a glowing cave in the lake beneath the waterfall... How strange. The Byakugan can't see any farther inside."
They followed the cave down and arrived at a rather dreamlike Underground Spring.
"...Even the Byakugan really can't see through it. My entire field of vision is distorted. I'm afraid this water isn't actually water in the usual sense."
Both Neji and Hinata looked astonished.
"I didn't notice before, but now it looks like this water is the physical manifestation of some kind of space-time ability?"
The Nine-Tails sounded surprised as well, though he had seen through the water's true nature.
The ninjutsu knowledge he had learned from Minato had certainly given the Nine-Tails a new understanding of many things in this world.
It had also given him a strange thought that only a long-lived being would have—
Why does the Shinobi World have all these bizarre environments? The Ryūmyaku, and now this water that connects the Shinobi World to the moon...
"A space-time ability?"
Naruto asked.
"Yes. Be careful. If I remember correctly, once you enter this water, you'll end up on the moon... What are you doing?"
"You made it sound so amazing, so I thought I'd take some back for the village to study." Naruto pulled out a cup and was about to scoop up some water. "Isn't that old guy, the Second Hokage, interested in this sort of thing?"
"You used that cup for miso soup yesterday, didn't you..."
Neji was speechless. It felt like being back on a team led by Might Guy.
"Oh, should I wash it first, then?"
Unlike the careless Naruto, Hinata came prepared, taking sample tubes and a sealing scroll out of