Mech 13

In a hyper space capitalist dystopia, where your only choice is becoming a corporate dog or die, the person known now only as "13" chose to become a corporate dog and pilot a mech. But 13 is full of self-loathing. The act of self-loathing can be a powerful, destructive force on a young mech pilot's psyche. 
When Black Cat, the handler for 13, sees that her pilot needs help, she knows her duty.

This short story by IDB is about the pain of having a body that does not match your self image.  It's also a story about the relationship of a mech pilot and its handler.