Inabi put his index finger to his lips, then pointed at Uchiha Yan:
"It's changed! Yan's real plan is already complete!"
"What do you mean?"
Everyone present looked at Uchiha Yan. The three tomoe in his eyes slowly spun, then began connecting, finally forming a pentagram.
"Shisui, remember how Yan asked us to use Lightning Clones that night?"
Shisui's eyes filled with shock as he pointed first at Uchiha Yan, then at Inabi:
"You! You both used this method to deceive yourselves and awaken the Mangekyō Sharingan?"
"What do you mean?"
Konan looked utterly confused. "What do you mean, deceive yourselves? Deceive yourselves and then awaken the Mangekyō Sharingan?"
"The Sharingan are eyes that reflect the heart. After experiencing the pain of losing someone dear, they can evolve into the Mangekyō Sharingan. That intense mental stimulus can change a person's personality.
"That was why Tobirama Senju always guarded against the Uchiha, and why the Uchiha used forbidden jutsu to guard against clansmen with the Mangekyō Sharingan.
"Yan saw this situation, but he didn't want to lose any friends or family, so he asked Shisui to use Kotoamatsukami to alter his memories and plant a new obsession in him.
"I don't know the specifics of his plan, but I know it must have involved Orochimaru. As long as Orochimaru disappeared and Yan's plan failed, it would definitely produce an intense emotional stimulus."
"But Orochimaru is his enemy! No matter how you alter his memories, you can't change all of them.
"Yan is so smart. He would definitely notice the holes, then realize his memories had probably been altered."
Pain explained, "The Tenseigan! Yan's obsession was the Tenseigan, and there was probably a time limit too. Orochimaru was the only person who could figure out the Tenseigan in a short time.
"That