Orochimaru had come this time not merely to say that he was leaving. He also had an important matter that required Uchiha Yuu's help.
"Our jointly developed Cursed Seal has revealed a small flaw."
Uchiha Yuu took the scroll from his hand and examined it carefully. When he saw the section Orochimaru had marked, he spoke with a grave expression:
"Orochimaru-sensei, the energy supply for the second stage isn't stable."
The current first generation, developed using Meteorite Radioactive Energy, could be considered a perfect masterpiece. However, further research revealed that the power provided by meteorites was ultimately too little to support the development of Sage Transformation Mode, leaving it as a half-finished product.
"I'll help you solve this problem, Orochimaru-sensei. We can try some substitutes."
At present, Uchiha Yuu could think of two options. One was to use the Rinnegan's abilities to pull over a batch of meteorites, though that would take a long time. The other was to develop a way to replicate Meteorite Radioactive Energy.
He was more inclined toward the latter. It would not require waiting too long, and current technology could achieve it.
"Then I'll leave it to you."
Orochimaru nodded lightly. Yet after he left, a faint smile appeared at the corner of his lips. Uchiha Yuu had not noticed Orochimaru's subtle expression, but he vaguely guessed something and said helplessly:
"It seems Orochimaru-sensei still hasn't given up on immortality."
The first-stage Cursed Seal could strengthen the human body. Being unable to achieve Sage Transformation was not a fatal issue, but Orochimaru's ambition was to live forever. The Cursed Seal could serve as a vessel for consciousness, provided the power within it did not fade with time. Otherwise, it would deal a severe blow to Orochimaru, who had divided off part of his spiritual power.