Learning social skills from a kid

Heavy-hearted Yi Chen stood in front of his bedroom door and as it slid open his mother's words of it being psychological, not physical had him a little worried. If it was psychological shouldn't she be making an appointment with the psychiatrist?

Since his father was the Marshal he had access to the best psychiatrist in the federation. The woman was literally one voice call away but his mother didn't recommend he set up an appointment with her which was puzzling to him.

With this thought clouding his mind he stepped into his room only to find that he had been invaded by the enemy. His brother was lying inside his quilt playing games and his sister was sitting in his chair looking at his stuff curiously.

"You!...," he yelled but he was at a loss for words. He couldn't understand how they had invaded his bedroom in the ten minutes he had been downstairs.