Ciaran Ou no Yaiba, also known as 'Ciaran, Blade of the King' (王の刃キアラン), is a prominent figure in the lore of the Dark Souls series. As one of Lord Gwyn's Four Knights, Ciaran is renowned for her exceptional agility and mastery of assassination techniques. She is fiercely loyal to Artorias the Abysswalker and is known for her silent demeanor and deadly precision. Her mysterious presence adds depth to the narrative, embodying both tragedy and unwavering devotion.