An Ionian of deep resolve, Yasuo is an agile swordsman who wields the air itself against his enemies. As a proud young man, he was falsely accused of murdering his master—unable to prove his innocence, he was forced to slay his own brother in self-defense. In time, his master's true killer was revealed, and his brother mysteriously returned from death, yet Yasuo still could not forgive himself for all he had done. Now, he wanders the world with only the wind to guide his blade.