Elena had actually visited a recording studio when she was only 12 years old. At that time she was still on earth and her family was living in Japan. So, during one of her holidays, a person working for her mother took her to a recording studio where one of her most anticipated anime was getting voiced by some of the best voice actors. Elena did remember that day to be quite fun, but after more than 10 years of incident filled years, she had almost forgotten everything about this visit.
But after seeing a studio again, she was able to remember the things she had forgotten. According to that memory, this studio looked very similar to the studio she had visited before. It was really surprising to see two different worlds having almost similar types of things.