When we first met, she was a younger brother and he was an older brother.
He lost his mother when he was young and grew up in a deep palace. She was his companion, accompanying him to face the intrigues of the deep palace.
Later, she became his comrade-in-arms and his indispensable right-hand man, accompanying him to defend the country.
Later, she became his wife, she took off her armor and accompanied him to rule the world.