I do not own Sailor Moon, so please don't sue me.
This is a poem about Usagi and the slight identity crisis. The theme was explored a bit in the manga and anime.

Who am I?

Who am I?
Looking in a mirror I see one,
But flying past reflections,
as I fight,
Another fights alongside.

He says "Princess",
in a more loving tone,
Are we different to him?
Does he love only one angle of me?
Am I a bridge to the other?

They fight to protect me.
Would they fight so hard as friends?
Is it a duty?
Do they protect me as stone?
A stone of power on which survival depends.

If I said no more sailor suit,
Would the small of their backs be my view,
as they walk away,
or as they pull me close,
and let me cry on their shoulder?

The girl I see is different each time,
and the thread ensnaring us,
is growing thinner all the time.
Which of us am I?
Can I be we, and join 3 in one.