Yone was Yasuo's elder brother. Watching him begin to train, he worried about his brother's future. One did not have to wait long until Yasuo stepped out of the way and started to ignore his wise master's lessons. He forgot, what patience meant.
The Elder was murdered. Yone, as well as all of his nation was fully convinced that Yasuo was the very man who killed him. The hunting began. Many people seeked for Yasuo, successfully, but they had all fallen by his sword and wind by his side. Finally, Yone found his brother.
Bound by a common code of honor, the two warriors bowed and drew their swords. Silently they circled one another under the moonlight. When they finally charged forward, Yone was no match for Yasuo; with a single flash of steel he cut his brother down. Yasuo dropped his weapon and rushed to Yone's side.
Overcome with emotion, he demanded to know how his own kin could think him guilty. Yone spoke: “The Elder was killed by a wind technique. Who else could it be?” He passed over.
Yone woke up in a mysterious dark place. On the horizon he saw a black, shadowy silhouette. Confusingly finding himself with no wounds and in a perfectly clear, white robes he ran there. What he saw there, changed his life forever. But was it life?
The Death itself stood there and said to him: "I have an offering. You will become my right hand down in Runaterra. I will bring you back to life so you can seek for your venegance, and for that, you will dispose my orders and bring me souls of Runaterra's inhabitants". Yone had no choice. He agreed.
He seeked for his brother for a long time, killing what he could in his way, gaining more power and buying himself more time. At last, he found out where Yasuo hid. Where else could a courageous and impatient murderer go, if not to the biggest slaughterhouse in Runaterra: the League of Legends. Yone joined the League and now collects his grim toll and looks for his brother on the Fields of Justice. To serve the Justice to the very end.
"Teaching a swordsman to kill is simple. The true challenge lies in teaching him not to kill."