Yvain the Lion Knight, like most medieval tales, is a coming-of-age story. The young and carefree thrill-seeking Yvain transforms into an adult and a king who takes responsibility while caring for others. This transition can be attributed in part to the Leo he encounters on his journey. When first introduced to Yvain, it's easy to see that he's an up-and-coming young knight ready to make a name for himself. As he listens to the story of his good friend, Calgrenant, defeated by another knight, vows to avenge his fallen comrade. He seems more determined and eager than anyone else to go into battle, however, his moment of pride is quickly mocked by Sir Kay. "My lord Yvain! By God, will you leave tonight or tomorrow? Let us know, dear lord, just when you begin this ordeal, so we can all escort you... And if your dreams are bad tonight, perhaps you are better off staying at home." (600-610) it becomes apparent that Yvain is seen as a younger brother in the eyes of his fellow knights. His sense of inferiority leads him to do everything he can to prove his worth, which is why he sneaks into the knight to face the challenge alone. This is the first indication that young Yvain is not emotionally and mentally mature. Yvain's pride and self-esteem depend heavily on how he is seen by others. After killing the knight who defeated Calgrenant, Yvain marries his wife and takes control of the land; which are responsibilities he is not ready for. Soon after his victory, the knights of King Arthur's court come to challenge the Lord of the land, unbeknownst to them it is now Yvain. Yvain quickly defeats Sir Kay and then reveals himself. Now he has gained approval and recognition from his colleagues whom he so despises... middle of paper... their bond grows in battles against the giant and the Demon Brothers. Yvain matures greatly during this period, gradually moving away from his need for approval from others by humbling himself. He is known only as "The Lion Knight" and his identity is kept secret, no longer motivated by admiration but now by justice. The Lion, symbol of royalty, was a mentor to Yvain, helping him raise not just a man but a king. Only through his experiences with Leo could he learn to behave properly like a man. If he hadn't met the Lion, Yvain wouldn't have known what respect is. Yvain always had the strength and courage of a lion, but he fought selfishly. After seeing the Lion defenseless against the serpent, he fights to defend those who cannot defend themselves. By taking on the responsibility of returning to his wife and his land, he transforms from a boy to a man.