Ran is 8 and rindo is 6. They are close together but they also can be like enemies sometimes.

Ran and Rindo was playing together. In the middle of the game they started to urge over something and that made the atmosphere so heavy full of anger. It was supposed to be just talking loudly but suddenly Ran lost his temper and punched Rindo's face so hardly. Rindo fell on the ground and his nose started to bleed.