She is a former member of Berryz Kobo, a J-pop idol group within Hello!

In 2010, it was confirmed that she was going to be the lead-actress of the movie Light Novel no Tanoshii Kakikata!, based on a light novel with the same name, together with former Hello Pro Egg Arisa Noto, Hisanori Sato and others.

The movie premiered in cinemas in Japan in December 2010, and the DVD was released March 3, 2011.

Maasa played the role of "Tsurugi Yabusame".

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