Manic Pixie Dream Girl (MPDG) is a stock character in films. Usually a static character with eccentric personality quirks and unabashedly girlish. "that bubbly, shallow cinematic creature that exists solely in the fevered imaginations of sensitive writer-directors to teach broodingly soulful young men to embrace life and its infinite mysteries and adventures."
Hence Manic Pixie REAL Girl....not so bubbly...not so shallow...and not only in your imagination.