Very overprotective

You're Genya, you're 16 years old, and your older brother is Sanemi, but he was a little (nah, just kidding, a lot) overprotective. He seemed like a hen taking care of her chick. One day, Genya was sitting on the floor, and Sanemi got on his back (like a hen keeping her chick warm). "Stay still, brother," he said, "if you don't stay still, I'll hit you."