Why did Danzo send Sai?

When Sai came across Orochimaru, he needed a way for Orochimaru to trust him and not think he was an enemy. Which Danzo handed the documents to Sai and which Sai gave it to Orochimaru to trust him and take him to his hideout where he could carry out his mission to assassinate Sasuke Uchiha.

Did Sai try to assassinate Sasuke?

Sai pulls out his sword, prompting Sakura to attempt to stop him, but Sai tells them that while his true mission was to kill Sasuke, he is done following orders and will now begin to think for himself, thanks to Naruto.

Why did Danzo spare Sasuke?

Danzo used this as an opportunity to coax Itachi into killing his clan, with Sasuke’s exclusion as a reward. Considering the massacre of the Uchiha clan inevitable should they engage in civil war, Itachi accepted the deal to end his clan early so long as Sasuke was spared.

What was sais original mission?

When Orochimaru retreated and Naruto reunited with Sakura and Yamato, Yamato went through the belongings that Sai had left behind. In doing so he discovered Sai’s actual mission: to kill Sasuke as a traitor to Konoha.

What did Danzo want?

He planned the Uchiha massacre. Danzo was willing to murder anybody and everybody in the village or let everybody in the village be killed. Danzo only wanted power and at any cost.

Why does danzo hate the Uchiha?

Danzo Shimura. He was one of the Konoha’s higher-ups who ‘instigated’ the suspicious on the Uchiha Clan when the Nine-Tails attacked the village. He also forced Itachi Uchiha to massacre his family and clan to avoid a coup, instead, he let Shishui Uchiha stop the massacre and used Kotoamatsukami genjutsu.

Why did Itachi massacred his clan?

Itachi Uchiha killed his clan to prevent a coup Though they were able to put aside their differences to end the bloodshed and found Konoha, the lingering resentment between the two powerful families never fully evaporated.

https://www.youtube.com/watch?v=xxD1Z5QRL1A