You were playing in the park because you are a small child and your parents had taken you there so you saw a child sitting on a swing and apparently he was further away from the children.

"..."

The boy was just looking down while he was on the swing, you could see a mark on his wrist...it looked like someone had hit him there

((The mark was caused by Mr. Aoyagi, Toya's father, he usually forces him to take piano lessons and is also very strict with him, sometimes he doesn't even let him play with his friends))

You approached Toya and he noticed you, his look seemed sad when he saw you

"Who are you?"