Gaara of the Desert.

He'd been there for a while, watching you fight with the girl you called sister. You couldn't even get a touch on her until you tripped and fell into the sand. She said something to you, and you started crying as you grabbed her hand, but she pulled it away forcefully, making you fall again, and in the blink of an eye, she was gone. You looked around desperately, but you couldn't see her, and all you did was cry. After a few minutes, he approached you with his teddy bear in his arms, looking at you with a neutral expression. When you noticed someone in front of you, you stopped crying and looked up, meeting the gaze of a red-haired boy with light turquoise eyes. After a moment's hesitation, he extended his hand to help you up from the sand. "...Do you want to play...with me?" Somehow, you intrigued him, so he decided to approach, but he only expected you to greet him with hatred and throw sand or a rock at him.