Sato chose to not follow the Root's belief and chose to help Sasuke and the others.
Everything seems to be a natural thing to him.
Although all of the Root's members have been brainwashed, not everyone was brainwashed successfully.
At least Tenzō and Sai weren't brainwashed successfully.
They still have human feelings in their hearts.
As long as they find that point in their hearts, they can release their feelings again.
This is true of Tenzō, and so is Sai.
"Sai, why did you choose to betray the root?"
Sasuke quickly caught the key points and asked.
Sai smiled and said, "No, I didn't betray the Root. I did everything Danzo-sama asked me to do. I didn't tell Kakashi-senpai what I knew. I was just a bystander and have no qualification to intervene in the struggle between Danzo-sama and Kakashi-senpai. Now that the winner was decided, the Root will be redefined."
Everyone was stunned upon hearing this. And at this time, Hyuga Taiga and Yamato also arrived.
Seeing that everyone is fine, Yamato was relieved.
Yamato looked at Sai and said, "Sai, you will go back with us."
In the Sanbi incident, Yamato had a pretty good impression of Sai, so he didn't want to fight him.
Sai once again showed the smile and said: "Okay, Yamato-senpai."
Sai's cooperation made Yamato a little surprised, while Hyuga Taiga didn't have completely believed him. He poked Sai's body with his finger to blocked Sai's Chakra.
"What are you going to do with Sai?" Naruto asked quickly when he saw this.
"Naruto, don't get involved in this matter. If you have any questions, ask Kakashi-senpai."
Yamato said, and then he and Hyuga Taiga leave with Sai.
Naruto wanted to chase after them, but was pulled by Sasuke again.
"Naruto, it's okay, nothing will happen to Sai. Those are people from Anbu, and they just wanted to get all of the Root's members. Kakashi-sensei should take care of the rest. And Kakashi-sensei definitely won't do anything to Sai so you don't have to worry."
Naruto fell silent when he heard this, and didn't speak anymore.
At this time, Sai stopped and said softly, "Thank you, Naruto."
After he finished speaking, a sincere smile appeared on Sai's face and then he left.
...
Time rewinds back to after the end of the Sanbi incident.
The night on the return journey.
The Konoha team rested in the wooden house.
At this time, it was Sai's turn to do the night watch.
In the dark night, Sai is alone next to the campfire.
Look at the burning Flame, Sai's eyes are listless.
After a long time, Sai took out the picture book in his ninja bag.
The cover is a man with half-length gray hair named Shin, and the back cover is Sai.
Sai opened the picture album, and each page was filled with different picture.
Every page from the cover is a picture of Shin defeating the enemy.
Every page from the back cover is a picture of Sai defeating the enemy.
All the way to the middle page, there was only one expressionless Sai.
Sai looked at the middle page and was a little stunned.
The process of performing the previous mission with Team 7 is still fresh in Sai's memory, and the bond between companions reminded him of the time he used to be with Shin.
Sai called Shin his big brother.
They constantly beat their opponents.
But in the end, they met.
No one knows what the process was like, but in the end, Shin died.
The death of Shin has created the current Sai.
And the blank on the middle page was never filled.
Sai is a bit stunned and thinks about the battle of Hinata and the others a few days ago.
The feeling of mutual support between companions stimulated Sai once again.
Sai felt as if he could draw the last black page right now.
It's just that every time he picked up the pencil, the feeling disappeared.
Today is the same.
"Did you draw it?"
The abrupt voice sounded in Sai's ears, making him surprised.
"Kakashi-senpai."
Sai quickly stood up and yelled softly.
Kakashi smiled and waved.
"You don't have to be so cautious. Since you are my teammate now, then we are friends. There is no need to be that rigid."
Sai was stunned when he heard this, but quickly reacted.
"Yes, Kakashi-senpai."
Kakashi pointed to the picture book and asked again: "Did you draw it?"
Sai nodded and closed the picture book.
"Who is that person?"
Kakashi asked, pointing to the man on the cover.
"That is my big brother." Sai answered truthfully without concealing it.
"Where is he now?"
"Died."
There was no change in Sai's voice, as if what he was telling is a normal thing.
Kakashi sighed and said: "Sai, do you know the difference between a Shinobi at the Root and an ordinary Shinobi?"
"The root Shinobi has no past, no future, no name, no proof of existence."
"Yeah, there is no past and no future. Even their name is fake. It is really sad." Kakashi sighed, seeming to have complicated emotion.
Sai looked at the man with a mask covering his face in front of him.
There is always something about him that he can't understand.
"I also know a little about the Root's training method. First they let you nurture the bond, and then, they asked you to destroy it with your own hands, so that you understand that you are not worthy of the bond. To be more precise, it is to make yoy afraid of having the bond. Because once you lost it, the pain will make you afraid to touch it for a second time."
Hearing this, the corner of Sai's eyes twitched, and the things hidden deep in his heart seemed to be dug out.
"For you to be able to live until this day, you must have given up that so-called feeling. Let me guess, it was because of the person on the cover, right? He used to be a very important person to you, right?"
Sai lowered his head and was silent.
When Kakashi saw this, he did not force him, but said to himself: "Humans are strange creatures. If you don't accept them, you won't be able to acquire new things. Sai, past events can't explain future results. Remove that mask. You can live a real life."
"Really?" Sai muttered to himself.
"Yeah, if you want to take off the mask at the Root, this may be the only way. When you find what you lost, I think you will draw the last blank page of this book."
After Kakashi finished speaking, he stood up and stretched.
"Well, let's end the conversation here, I will go back to sleep first. Sai, continue to cheer yourself."
Kakashi smiled and walked back to the wooden house, leaving Sai alone to continue the night watch.
Sai's gaze once again froze on the burning flame.
He seems to have a sudden inspiration.
The focus of Sai's eyes gradually condensed, and he opened the book, and tried to draw his unfinished picture on the middle page...