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"Xiao" is a secret organization in the Japanese manga Naruto and its derivative works. Members wear black trench coats embroidered with red clouds, wind chimes on their hats, rings marked with their own codes on their corresponding fingers (from right thumb to left thumb: zero, blue, white, Zhu, Xuan, Kong, South, North, San, Jade), nails are painted with nail polish, and there is a scratch on their foreheads. Usually, they work together in pairs when performing tasks.

The two leaders, Yahiko and Nagato, originally aimed at bringing peace to their country. After Yahiko's death, Nagato fell. In order to collect, Xiao was transformed and changed his plan.