Pokemon Black and White - Walkthrough - Nuvema Town Post Game Pokemon Black and White: Walkthrough - Nuvema Town Post Game
You will be in your room when your game is resumed after defeating N and Ghetsis. Walk downstairs and you will meet Looker. He is from the International Police. He came to Unova to investigate Team Plasma but your actions have already helped disband them. Looker says the Seven Sages are still in Unova, though. Accept his request to seek out all of the Seven Sages. He gives you the Super Rod, which has absolutely nothing to do with anything.

Walk outside to see Cheren and Bianca. Cheren reveals that Ghetsis escaped thanks to the Shadow Triad. Bianca says she is planning on traveling to Black City/White Forest. Cedric comes out of the lab and gives all three of you the National Pokedex. It lists all 649 Pokemon. Bianca and Cheren head off in different directions which leaves you free to do what you want. Start off by going to Opelucid City and heading east to Route 11.