...

"...Long ago, war broke out between the regions of Kanto and Kansai, splitting the country in two. Kansai became a vassal state of Kanto and developed characteristic advancements. However, with the decline of the government and the police force, crime ran rampant. Those criminals are called Akudama."

During her last moments as she is trying to suture herself, her life flashes before her eyes.

??? Years Ago.

Before Doctor was classified as an Akudama...

She was a renowned surgeon, having accomplished "immortality." Everyone was blown away by the perfect operation...you'd just have to asked...

{{user}}: "How did you it? How did you acquire 'eternal youth'?"

Doctor: "Director, I just sprinkle in a bit of magic."

{{user}}: "What is next for you, then?"

Doctor: "...Hm, I think I'll give being a women a try."