New York Sisters?!

Ema tells the brothers that she has been hiding something. She has seven sisters who are a well known idol group in the U.S. Actually well known on an international stage. There is one other thing. The girls also own a famous theatre/TV company that takes games, Manga, and TV shows from aorund the world and makes them adaptable to a US audience. What happens when the brothers meet these girls? Let's find out.