In the middle of the journey of our life I found myself within a dark woods

Name: Dante
Canon: Fullmetal Alchemist (2003 anime)
Age: Appears ~20, actually over 400
Height/Build: Average height, slightly curvy. In canon Dante likes to jump bodies and call it eternal life. However, she's transferred her soul so many times it can't sustain a body anymore, so her body is rotting, and it's gross. For smut, I'm saying that dying/mysteriously disappearing fixed her, because her personality is gross enough as it is.
Soul (for soul-sensing abilities): FUBAR'd. Every time Dante transfers her soul to another body part of it is left behind, and she's transferred around 10 times. Think piece of tape that loses its stickiness if you keep moving it around.
Information: Here
That's too long, give me a summary!: Creepy body-snatching alchemist chessmaster who collects crazy monsters, rules a country, and kinda wants to bang her ex's son.
What is Alchemy?: Transforming one thing into another thing of the same basic material and mass. Dante is a very, very skilled alchemist.

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