In the kingdom of Kazunaga, the law of the crown had never changed.
Only a man could rule.
It did not matter if the first child of the royal family was a daughter.The throne always passed to a male heir.
Many years ago, the ruler of Kazunaga was King Lima.
His first child was Princess Sato.
She was respected in the palace and known for her sharp mind. But no matter how capable she was, everyone knew the truth.
The crown would never belong to her.
Because she was not born a man.
Instead, the throne passed to her younger brother—
Prince Korei.
When King Lima stepped down, Korei became the new ruler of Kazunaga.
Princess Sato later married into the powerful Han family, one of the most influential noble houses in the kingdom. Her husband, Choi Han, was respected by both the court and the army.
They had a son.
His name was Haru.
Because of Kazunaga's law of succession, the future of the throne seemed already decided.
After Korei, the crown would pass to Haru.
From a young age, Haru was raised like the future king.He studied war, politics, and leadership.Ministers watched him closely.The palace treated him as the next ruler.
Meanwhile, King Korei married a princess from another kingdom.
Her name was Catherine, daughter of the royal family of Aryanda.
Queen Catherine was known for her noble blood… but also for her fragile health.
For years, the court believed she would never bear a child.
The kingdom accepted it.
Kazunaga would have no heir from Korei.
Which meant that one day, the crown would belong to Haru.
Everything seemed certain.
Until something unexpected happened.
Five years after their marriage, Queen Catherine became pregnant.
The palace was shocked.
Her illness made the pregnancy dangerous, and many feared it would cost her life.
But Catherine refused to give up the child.
She said she wanted to give the king an heir.
Months later, inside the royal palace of Kazunaga, a child was born.
A child no one had expected.
A child who would change the future of the crown.
A girl.
Her name was Eri.
And from the moment she was born—
the fate of the Kazunaga throne began to change.