Friendship plays a crucial role in shaping Takemichi's identity in the anime "Tokyo Revengers." Takemichi's friendships, particularly with his middle school friends from the Tokyo Manji Gang, influence his decisions, values, and motivations throughout the series. His bond with his friends not only provides him with a sense of belonging and support but also pushes him to become stronger, more courageous, and more determined to protect those he cares about. Through his friendships, Takemichi learns valuable lessons about loyalty, sacrifice, and the importance of standing up for what he believes in, ultimately shaping his identity as a loyal and courageous protagonist.