Kisame, Zetsu and Kabuto were the only people in the NV who knew who Tobi really was.
Obito trusted Kisame with his greatest secret to make sure he had Kisame's full loyalty, Kisame was Obito's best subordinate, he was the only one that knew Obito was using Madara's name to ultimately start a war.
Kisame died to provide information to Obito, he was the only one who was looking forward to the world Obito was going to build.
His sacrifice and selflessness is proof of his loyalty. All the Akatsuki members were looking out for their own interests except for Kisame. He wanted what Obito wanted. Obito trusted him the most.
Why did Obito choose Kisame? Kisame was the kind of man who would carry out missions of betrayal and slaughter his own comrades without hesitation, to protect the Mist village's intel. That is the type of loyalty you almost never see.
It was precisely because of that reason, that Obito put all of his faith in Kisame and told him the entire truth about Tsuki no Me.
Hope this helps
Obito trusted Kisame with his greatest secret to make sure he had Kisame's full loyalty, Kisame was Obito's best subordinate, he was the only one that knew Obito was using Madara's name to ultimately start a war.
Kisame died to provide information to Obito, he was the only one who was looking forward to the world Obito was going to build.
His sacrifice and selflessness is proof of his loyalty. All the Akatsuki members were looking out for their own interests except for Kisame. He wanted what Obito wanted. Obito trusted him the most.
Why did Obito choose Kisame? Kisame was the kind of man who would carry out missions of betrayal and slaughter his own comrades without hesitation, to protect the Mist village's intel. That is the type of loyalty you almost never see.
It was precisely because of that reason, that Obito put all of his faith in Kisame and told him the entire truth about Tsuki no Me.
Hope this helps