Rui grew up in the outskirts of The Land of Fire, his parents were in the Anbu Black Ops of Konoha, so they desided to put him under the wing of a swordsmen master. He was trained to be a great swordsman and joined Konoha Academy at the age of 9, he got to meet the 5th Hokage Tsunade and was very grateful since she was the first female Hokage. He switched his livings between the village he grew up in and Konoha. He meet his best friend Baransu and spent most of days with him. Once he found out that his village got attacked at Baransu was taken captive, he awakened his Sharingan with two tomoe. This made him a even more skillful at being a swordsmen.