Chibi

was an abandoned dog that Nagato found while wandering around the village after his parents were killed. Nagato fell down into the water because of hunger and was dying but thanks to Chibi, Nagato found the will to go on. Then, they were helped by Konan, who gave some bread to Nagato and to Chibi. They join Yahiko and Konan to steal food from some vendors to have something to eat. Chibi appeared to be a very smart dog. He was found of Konan's Origami. Chibi was later killed in the crossfire of Hanzō's battle with the Sannin. The Ame Orphans later mourned his death.

Trivia

 * Chibi means "tiny".