"Karn, you're back. It's been a while. Let me finish this experiment."
Orochimaru looked up briefly, then continued the experiment in his hands.
After shaking off the lovestruck snake Ichikishimahime, Karn found Orochimaru's experimental site in Ryūchi Cave. The things he wanted to experiment on were too large, and there was nowhere suitable in the Land of Fire. Only the area around Ryūchi Cave suited Orochimaru's biological research.
There was also an abundance of prey here. Thanks to chakra and the natural energy of this shinobi planet, many animals and plants could grow beyond the normal limits of their size. Wild boars reaching three or four meters tall were nothing unusual, and there was even bamboo ten meters thick.
"You've already obtained chakra from the Seven-Tails, Five-Tails, and Four-Tails? Just what I'd expect from you, Orochimaru. It would be nice if you could get your hands on the tailed beasts themselves."
Karn looked at the Nine-Headed Dragon lying on the ground in the distance. Orochimaru had already transplanted the tailed beasts' powerful chakra into six of its heads. He had also modified the Nine-Headed Dragon's bodily structure so that its enormous body could supply all nine heads with a continuous flow of chakra.
"How could there possibly be that many jinchūriki? Without a suitable constitution, even a ninja at the level of the Five Kage would barely be able to move after having a tailed beast sealed inside them. And there aren't any suitable vessels, either. I only managed to bring the chakra back thanks to the Six Paths Tools you gave me."
After the experiment in his hands failed, Orochimaru temporarily abandoned the idea of continuing. He felt his failure was due to Karn chattering in his ear. If possible, he would rather Karn not disturb him except when