In the Infinite Tsukuyomi, Kiba was declared the sixth Hokage, much to Naruto and Konohamaru's jealousy. His first decree as Hokage? He would create a new national holiday dedicated to dogs. Then Kakashi informed him there already was one, but it was rather obscure. So, he decided to rescue the holiday from obscurity and made National Dog Day, August 26; to be known throughout the world. Akamaru, his Great Pyrenees, barked, his mate fat with a litter of expecting puppies by his side.
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In the real world, Kiba was cocooned and connected to the Shinju along with Akamaru and all his friends and loved ones. Kaguya-hime let him dream his foolish dream. Soon, he will learn how not to be a leader, but a follower. A follower and a fighter.
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A year later, Kiba's clothes vanished. He would not need them.
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Another year passed, and Kiba's chakra started to become drained as his jutsu started to become forgotten. Akamaru also had his jutsu drained as well. Soon, he would just be an ordinary dog.
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Another year passed. Kiba was starting to resemble a mummy as his body became drained of chakra. Now, his personality would be drained next. Akamaru's personality had already been drained after his chakra was drained dry.
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As the years passed, Kiba's body began to change. His skin turned chalk white with jagged lines on it, his brown hair turned green, his black eyes turned yellow and his slit pupils turned round.
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After Kiba lost his sense of self, his mind became filled with commands from an alien-like woman's voice. A voice telling him his dream was over. He was not meant to be a leader, but a soldier that followed orders. Soon, he would serve a higher power that surpassed the Hokage and he will obey her. Kiba absorbed all these commands and did not resist.
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Soon, there was nothing left of Kiba but a dried up husk. But he was not dead. He was preserved so he can take on a new form in the next phase of the transformation into a White Zetsu.
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The cocoon had finished compressing tight against his body, so much so that one can see the outline of the body's facial features.
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The cocoon had finished peeling off and White Zetsu dropped to the ground along with all the other White Zetsus, all of whom used to be his friends and loved ones. Suddenly, a dog barked next to him. A Great Pyrenees was looking around, confused as to what had happened to it. White Zetsu patted its head. Something about this seemed right. But as soon as Kaguya-hime made her presence known, White Zetsu diverted his attention away from the dog and towards his princess. The dog looked up at her and bowed its head as well. All life on earth, animals and humans who were not turned into White Zetsus alike, were to serve Kaguya-hime. And they will be grateful to her once she saves them all from the two intruding interlopers.