"Heh heh, before you deny it, First Hokage-sama, take a look at this first." Uchiha Chuan tossed the Infection Technique to Hashirama.
"What is this?" Hashirama asked doubtfully as he took it.
"That's the Infection Technique. It's a ninjutsu that lets anyone who trains, as long as they change their surname to Uchiha, awaken the Sharingan." Madara Uchiha knew about the Infection Technique and immediately introduced it proudly.
"What? Is that true?" Hashirama was stunned.
"Of course it's true. My name was Minato, but now I'm Uchiha Minato." At that moment, Minato spoke, and his eyes instantly bloomed into scarlet Three-Tomoe Sharingan.
"My name was Uzumaki Nagato, but now I'm Uchiha Nagato." Nagato also immediately activated his Three-Tomoe Sharingan.
"Wait, weren't your eyes just now Rinnegan? Aren't Rinnegan Sage Eyes? Why would Sage Eyes need to activate Sharingan?" Hashirama asked in surprise.
"These Rinnegan were Madara Uchiha's eyes. The Rinnegan evolved from the Sharingan, but the Rinnegan itself has no ability to regress back into the Sharingan. Even so, the Infection Technique can still let me activate the Sharingan. Although the Rinnegan evolved from the Sharingan and has stronger perception, because its abilities are far more powerful than the Sharingan's, its perception may have improved, but its fine detail is much worse. In certain situations, it really isn't as useful as the Sharingan," Nagato said.
"The Rinnegan actually evolved from Madara's Sharingan? Could this be that All Things in One you mentioned, Madara?" Hashirama asked in surprise.
"First Hokage-sama, don't listen to their nonsense. They're all Konoha rogue ninjas!" the Third Hokage said anxiously.
"Hmph, old man Third Hokage, why did we betray Konoha? Wasn't it because you forced us to? You joined forces with the other Four Kage to destroy the Uchiha Clan. If the Uchiha hadn't received word