The reason Kakashi could not convert the Chidori into Raikiri was due to insufficient Chakra reserves and poor Chakra control.
But Ryou perfectly replaced him.
Ryou developed forbidden jutsu, proving his Chakra control ability was already at the forbidden jutsu level.
As for Chakra volume, 10 or 20 units are considered too little.
Ryou was by no means short on Chakra.
As Ryou injected Chakra, the lightning in his right hand grew denser, instantly transforming from light blue to deep blue.
The sound of the Chidori also changed from a subtle bird chirp to a thunderous roar, a deafening noise capable of splitting the clouds.
At this moment, the complete form of Chidori, the Raikiri, blossomed in Ryou's hand.
"Raikiri!"
Kakashi stared blankly at the deep blue lightning in Ryou's hand; this was the complete form of Chidori, the direction Kakashi would strive for in the future.
Ryou had even named it.
Kakashi wore no smile; all his smiles were on Ryou's face.
Ryou grabbed Kakashi by the collar, pointing the Raikiri directly at Kakashi's chest.
Rin's pupils contracted, and she quickly rushed forward: "Ryou-senpai, no!"
Kurenai also realized she was not an automaton and quickly cast her ultimate Genjutsu, Tree Binding Death!
Ryou turned his head and merely glanced at Kurenai with his three tomoe Sharingan, instantly reflecting Kurenai's Tree Binding Death, back at her.
Kurenai was instantly restrained by her own Genjutsu.
Kurenai dared to use Genjutsu in front of an Uchiha Jonin? This was no different than Danzo stabbing Susanoo with a Kunai.
The little Kurenai dared to show off in front of the Uchiha's Sharingan?
As Ryou retracted his Sharingan, he casually glanced at Rin, instantly hypnotizing her.
Ryou's Raikiri was fast, like a streak of light, and Kakashi saw many things within it.
His misunderstood father, Minato-sensei, Rin, Obito... Kakashi slowly closed his eyes, accepting his fate.
The day a Ninja dons a forehead protector, they know what their end will be!
Kakashi felt it was a pity; he already knew the good news that Obito was alive. As long as he found him, they could fight side-by-side.
He owed Obito too much and hadn't compensated him properly yet?
But... he no longer had that chance!
Sorry, Obito!
Father, I'm coming to join you.
But Ryou's Raikiri was slow to descend. A figure in black and white appeared at Ryou's feet, tightly hugging Ryou's legs.
"Uncle, Uncle, I beg you, Uncle, just let Kakashi go like a fart!"
Kakashi heard that familiar voice and suddenly opened his eyes. At this moment, his left eye and the right eye of the strange man crawling on the ground matched up.
Forming a pair of matching Sharingan.
"Obito—!"
Even Obito's grandmother in the city wouldn't recognize him now.
The left half of his face had large scars, appearing white, as if filled with some kind of white substance.
The right half of his face was black. Emerging from the ground in the middle of the night, it could only be a ghost or a lunatic.
The light in Ryou's hand slowly dimmed. He grabbed Obito's hair: "You know to call me Uncle now? You cursed me, the evil Uchiha, at every opportunity!"
"Uncle, I was wrong, Uncle! From now on, I'll only curse that old demon Uchiha Madara."
Obito kowtowed repeatedly, desperately pleading for Kakashi.
Obito's kowtowing suddenly stopped. As if possessed, his body struggled a few times, and then Tobi's face covered his left side.
Tobi said to Ryou: "Sorry, Ryou-sama, Obito suddenly erupted with a powerful will just now and broke free from my control."
Ryou reached out to give Tobi a head pat: "It's fine, Tobi, pay attention next time."
Hearing this, Tobi's spine chilled, and he quickly jumped far away from Ryou.
Afraid of being touched and refined by Ryou!
The White Zetsu clones at Madara's base had to write their last wills when reporting messages to Ryou, because even the messengers were absorbed by this construction.
Black Zetsu secretly felt it was a pity; the surge of willpower Obito just showed had instantly broken through Madara's Genjutsu; he found it terrifying.
If Kakashi had been killed, perhaps Obito's willpower would have transformed into the mental energy needed to awaken Obito's Mangekyo.
What a pity, what a pity for Obito.
I gave you a chance, but you weren't useful! I gave you a chance, but you weren't useful!
How astonishing was Obito's willpower?
In the original story, the Ten-Tails almost completely turned Obito into a puppet. When the Ten-Tails tried to devour Obito's memories related to Rin.
Obito stubbornly resisted the Ten-Tails' backlash with the body of a mortal.
Ryou completely drained Kakashi and tossed him aside.
All of Kakashi's Chakra had been absorbed by Ryou. His face was pale, and he lacked the strength to even stand up.
But Kakashi showed no distress; instead, he looked at Obito with ecstatic joy.
"Obito, that's wonderful! Minato-sensei said you were still alive, and it turns out it was true."
Obito tried to speak, but the constructed Tobi didn't grant him permission.
He desperately showed a pleading expression toward Ryou.
Ryou looked at Kakashi, lying like a dead dog in the mud but showing joy, and then looked at Obito pleading beside him.
He sighed: "Truly a pair of ill-fated lovers!"
Ryou allowed Tobi to release the control over Obito's speech, and Obito could immediately speak with Kakashi.
He had so much to tell Kakashi and Rin. During the period he was controlled by Madara, Obito's world had been gray.
It was the longing for Rin and his bond with Kakashi that kept him going until today.
Ryou did not disturb Obito and Kakashi's long-awaited reunion. He walked to Kurenai's front, stroked her hair, and instantly released the Tree Binding Death she was trapped in.
Kurenai's face instantly turned pale after being freed from the Genjutsu, and she gasped for breath.
She had been controlled by her own Genjutsu just now, constantly held up in the great tree.
Ryou lifted Kurenai's chin and showed her his Sharingan.
"Do you recognize me? Do you know what my eyes are?"
Kurenai bit Ryou's hand like a cat spitting.
Ryou immediately cried out in pain.
"Candy, Candy, quickly pull her off!"
Candy sighed helplessly, feeling ashamed to have such a master.
After Candy pulled Kurenai away, Ryou planted a spore on Kurenai, generating vines that bound her.
Ryou used his Sharingan to force Kurenai to cast Demonic Illusion: Tree Binding Death once more, copying the Genjutsu, while the White Zetsu cells absorbed her Genjutsu Chakra.
With both methods working simultaneously, Kurenai's Tree Binding Death was mastered in an instant.
Ryou immediately demonstrated on Kakashi, who instantly fell into the illusionary world of Tree Binding Death.
Obito roared at Ryou: "Ryou, who told you to experiment on Kakashi? Release him quickly, I was having a great conversation with Kakashi!"
After her hypnosis was lifted, Kurenai immediately understood and cursed Ryou loudly: "Ryou, you despicable villain, stealing my Genjutsu, truly shameless."
"You still dare to speak!"
Ryou pinched Kurenai's small face, kneading it into various shapes with force.
"Damn it, Ryou, I will definitely kill you."