Hayner

Hayner is a character from Kingdom Hearts II, who appears in Kingdom Hearts: Light by Darkness as a resident of Twilight Town. He is Seifer's rival and best friends with Pence and Olette (also Roxas in the Simulated Twilight Town).

Kingdom Hearts: Light by Darkness
''A resident of Twilight Town. He has an attitude problem, and always drags Pence and Olette with him. He is also rivaled with Seifer, the champion of the Struggle tournament.''

Kingdom Hearts: Light by Darkness
He meets up with Sora at Sunset Terrace, who asks if Hayner has seen his friends. Hayner says no, but tells him to go to the usual spot since there is a letter waiting for him, until they knock into a Darkside, and Hayner runs away. At the usual spot, he meets up with Pence and Olette, and soon after Kairi, Sora, and Riku come. That's when Hayner gets the idea of entering Sora into the Struggle tournament, to beat Seifer since he had been getting on his nerves. Sora agrees, and Hayner gets happy when Sora defeats Seifer at the tournament, even though he himself lost against Sora in the tournament.

Afterward, he gave Sora and his friends the letter, and watch them go on board the train, asking them to come back sometime. Later, he gives you a quest, and he is also in the Struggle tournament once again.