Sora

Sora is fourteen years old at the beginning of Kingdom Hearts and lives on the Destiny Islands with his best friends Riku and Kairi, and others including Selphie, Tidus, and Wakka. Sora and his two close friends seek to see the world beyond the islands and begin to build a raft. However, a strange dark force storms the islands and Sora is swept away from his home and separated from his friends. He drifted though the corridors of darkness, an interdimensional pathway, and ended up at a place known as Traverse Town.
Here he meets Donald Duck and Goofy, the respective Royal Court Magician and Captain of the Royal Guard of Disney Castle. They are under direct orders found in a letter left behind by their king, Mickey, who has mysteriously disappeared and is on his own mission conducting an investigation into the darkness that is slowly swallowing world after world, to find Leon and a mysterious "key". The three of them decide to look for their friends together, especially since Donald and Goofy believe Sora will be the one to defeat the dark force because he bears a weapon known as the Keyblade.
In Traverse Town, Sora finds Riku and discovers that neither of them can find Kairi. Riku, seeing that Sora has befriended Donald and Goofy, comes to believe that Sora has forgotten about him and decides to find Kairi on his own. Sora ends up traversing multiple worlds to stop the Heartless, the creatures that embody the darkness, and also rescue the Seven Princesses of Heart, who are the key to opening the final keyhole that will unlock Kingdom Hearts, the objective of the villains controlling the Heartless.