Sailor Senshi
I wonder if this is where they got the idea of Dark Mercury in PGSM from? Ayako does a really good job of playing evil Ami, and she acts very similar to how Dark Mercury acts in PGSM.

Manami Wakayama (若山愛美), born December 11, 1986, in Tokyo, Japan, was the sixth actress to play Ami Mizuno/Sailor Mercury in the Sailor Moonmusicals. Her first musical was the 2002 Winter Show Tanjou! Ankoku no Princess Black Lady (Kaiteiban), but she did not play Sailor Mercury until 2002’sMugen Gakuen - Mistress Labyrinth. Manami graduated from the role after Shin Kaguya Shima Densetsu (Kaiteiban) - Marinamoon Final in 2005. She was the second longest running actress to play Sailor Mercury, and the eighteenth longest running performer in Sera Myu history.
All hail Queen Manami!
Mercury Aqua Rhapsody!