Sora is the main protagonist of the Kingdom Hearts series, as well as a Keyblade wielder. He is an upbeat teenager who may seem simple minded at times, but is very aware of the importance of his quest. He possesses a strong sense of justice and an unrelenting heart. At times he is impulsive and quick to anger when defending his friends, but he is always sincere about what he says and does. He is also best friends with Riku and Kairi. Sora's name is derived from the Japanese word for "sky". This character is popular among cosplayers. It can be portrayed by wearing cosplay Sora costume and cosplay Sora wig. This character is always present in a Kingdom Hearts cosplay.