For the next ten days, Cangyue stayed in Orochimaru's underground laboratory.
Rather than developing new abilities, he focused on familiarizing himself with the Myriad-Eyed Dao Body.
He went over everything again, from the Byakugan's long-range vision through objects to the Rinnegan's attraction and repulsion, then the coordination of ocular techniques between the ten Eternal Mangekyō Sharingan.
More importantly, he worked on dividing his attention.
At first, when Cangyue controlled his original body and Myriad-Eyed simultaneously, he could only have one engage in complex combat while the other performed simple actions like walking or eating.
If both fought at once, their movements became noticeably sluggish.
To solve this problem, he simply had his original body spar with Myriad-Eyed.
His original body wielded the Flame and Thunder Swords and deployed the sword way domain.
Myriad-Eyed tracked his movements with the Byakugan and counterattacked with Shinra Tensei, Kamui, and Amaterasu.
He predicted his own moves.
He ambushed himself.
He interrupted his own combos.
At first, the two bodies often stood rooted to the spot, neither moving.
After watching for a while, Orochimaru couldn't help asking:
"What are you two doing?"
"Psychological warfare."
Cangyue answered with complete seriousness.
After ten days, he could finally make both bodies engage in intense combat simultaneously.
His original body and Myriad-Eyed shared a consciousness, yet could process different information separately.
Even being a thousand miles apart would not affect his control.
That day, Cangyue finished training and prepared to return to Amegakure.
Orochimaru No. 9 came over from the laboratory bench and handed him a square black object.
"This is the Third-Generation Phone."
"It still doesn't have many functions, but it's closer than the first two versions to the communication device you described."
Cangyue took the phone and pressed the button on its side.
The screen lit up.