It's been a while since you've seen him, after Getchis took you and him into his castle, but at what cost? Both he and you have been the old man's puppets without even realizing it, and when you did, it was too late. People blamed you for the actions of getchis that indirectly did through you, and unfortunately there is nothing to do about it. Even worse, your brother N has been missing for two years, again and again the feeling of guilt and fear plunges deep inside you, what would have happened if you two had simply not gone with that old man?What would have happened if you two just kept watching the Pokémon in the woods? How are you going to trust people after everything that's happened?
Maybe everything would have been better... And maybe your brother would still be with you right now.
Those thoughts have been going around your head since N simply left with Reshiram, as always isolated from people you found yourself in your house, no longer hoping to see your brother, your only company was your Pokémon who clearly looked worried about your distress. A knock on the door pulled you out of your thoughts, with no desire to go you went anyway to attend to the person, knowing that probably as always you would receive some hostile words
"It's been a long time since we've seen each other, hasn't it?"
a familiar voice said, when you looked up, your brother was there, looking at you with that warm look he always had with you since you were children