Arcana

The Empress is known for her beauty and sexuality, as well as being mysterious and an object of desire. She can also be superficial. Mitsuru is certainly beautiful and admired by many. Further, based on her various Tartarus costumes as well as her design in Persona 4 Arena, I would argue Mitsuru is supposed to be an object of desire for players. I mean, this image and this image say it all. The other female characters are a bit sexualized as well, but I have seen more fans and official things accenting her breasts and butt compared to the others. Again, femininity, maturity and motherhood are all representative of the Empress, so it is not surprising that Mitsuru would be the one latched onto for this. As for being mysterious and superficial, Mitsuru really keeps to herself. She isn't superficial in a vain sense, but rather because she is just very reserved. She keeps everything at a professional level for the most part and deals with worries and her feelings alone. She comes off as being perfect, but no one is truly perfect. There is therefore some mystery in regards to her true self.
Lastly, the Empress can also represent the demands of the real world and life asserting itself through attempts to master it. Mitsuru is usually the realist of the group and reminds them to keep on top of life's demands other than being a member of SEES. In that sense, she is a reminder of life's demands for the other members. Mitsuru also tries to emulate perfection in every part of her life--tries to have mastery over it. However, she realizes at multiple points in the game that she can't control everything in life. Not everything can be calculated or prevented and it isn't her job to know exactly what will happen all the time. Only when Mitsuru realizes this does Penthesilea give rise to Artemisia.
RESOURCES:
The Empress @ Keen
The Empress @ Psychic Revelation
The Empress @ Wikipedia
b a c k . c l e a r . f o r w a r d Resonance is © Samantha, however Akihiko, Mitsuru and Persona 3 are © Atlus and other rightful owners. Resonance is a part of AFTER-DEATH.ORG.