"To awaken Orochimaru, we'll need the Seven-Star Lamp Formation."
When Hashirama spoke the name of that ancient formation, the eyes of Orochimaru's curse-mark incarnation suddenly lit up.
Kabuto Yakushi gave him a curious look. "Where did this technique come from? I've never heard of it."
Orochimaru's curse-mark incarnation pondered for a moment. "Let me put it this way... In my previous life, I scoured every document for the secrets of the Ninja World. Only two things remained mysteries to me: the first was how Inari Ōkami became a god, and the second was the lost Seven-Star Lamp Formation!"
Kabuto Yakushi exclaimed, "Seriously?!"
Orochimaru said, "This formation originated with the Uzumaki Clan. It was said to be a technique for extending the lives of those on the brink of death, but its principles were so cruel that every document recording it was deliberately destroyed."
"This technique requires seven ninja at least as powerful as a Hokage. Once activated, it summons seven lamps."
"Sounds like an upgraded Four Red Yang Formation. Nothing that impressive!"
Suigetsu, whose horizons had broadened immensely, spoke dismissively.
Orochimaru shut him down in an instant. "Those oil lamps burn the casters' souls as fuel."
Suigetsu chanted, "Evil spirits, begone! Sorry for the intrusion!"
Jugo asked gravely, "Does that mean everyone participating in the formation will die?"
"No. The Seven-Star Lamp Formation automatically dissolves as soon as one lamp goes out. No two souls can be perfectly equal, so one lamp will inevitably burn out first. That person dies, while the other participants sacrifice a portion of their lifespans."
Nagato said, "How cruel. No wonder it was erased from the records. But Lord First, you're renowned for your kindness. How did you learn of this technique's existence? From what you've said, you seem capable of using it, too."
Hashirama