――The Kingdom of Yashruna.

A small nation protected by fertile lands and sturdy City Wall. It had been resisting the invasion of a military empire, which aimed to conquer the continent, for many years.

The king who led the kingdom, and the soldiers who answered his call. Their unity was strong, and they waged a battle without yielding an inch, even against the empire's vast army.

However, realizing that conquest by force would not succeed, the Emperor of the Empire devised a new plan. The target was the princess, who was visiting the battlefield to console the people.

With the princess taken hostage, the war situation changed completely. The royal army could not fight as they wished, fearing for the princess's safety, and the previously balanced battle gradually tilted in favor of the empire.

Meanwhile, the princess, who was taken to the imperial castle, learned that her homeland was in distress because of her capture.

For the sake of her kingdom. For the sake of her people. And for the sake of the soldiers who continued to fight believing in her. She decided to escape from the imperial castle.

However, as a hostage, she was under strict surveillance. Although she was under house arrest, escaping from the massive imperial castle, circumventing the watchful soldiers, was virtually impossible.

The princess, at a loss. Before her, appeared a doctor serving the empire.

[Doctor] "You wish to escape from here?"

[Doctor] "Then leave it to me. I shall transform Her Highness into a body capable of escaping this castle."

That man, known as the empire's greatest physician. But at the same time, he was also a heretical researcher with ideas incomprehensible to ordinary people.

There was no such thing as magic in this world. Nor was there a race called magicians. The man's main profession was a doctor, and he excelled at performing various procedures on the human body using his unique techniques.

The princess, risking her own body to save her homeland. The procedures began that day. However, it was a "female body modification" that the word "plastic surgery" would be too mild to describe――.