The two shared the surname Valentine and were distant relatives of the current royal family.
And Suna, the "Solar Warrior," was the wife of Alex, the "Moonlight Swordsman."
In other words, Lady Suna Montilfali was Camilla's sister-in-law, and under normal circumstances, Camilla should have addressed her as elder sister.
However, their relationship was poor—extremely poor, in fact!
Many factors were involved, but the most significant was Alex's death.
Alex was of mixed blood. His mother had been Count Valentine's second wife, not a human, but a rare kind among the elves—a Moon Elf!
Moon Elves were known as dancers beneath the moonlit night. Even among elves, they possessed an exalted bloodline and could absorb the essence of moonlight for their own use.
Count Valentine's branch of the family possessed bloodline traits highly similar to those of Moon Elves and could likewise wield moon magic.
In the ancient human empire, those with such bloodlines would generally become noble priests of the moon.
It was precisely because of that shared trait that Count Valentine, as a human, had won the favor of a Moon Elf, leading to Alex's birth.
But in truth, Count Valentine was not a responsible or decent man. He had merely coveted the Moon Elf's beauty and had never expected to hit the mark in one shot.
Thus, Alex could be considered the product of an accident.
Count Valentine did not like Alex. One could even say that he hated him.
As for Alex's mother, that Moon Elf, she returned to the elven lands shortly after giving birth to the mixed-blood Alex. She secluded herself there and never emerged again.
From childhood to adulthood, Alex had practically been raised by his elder sister, Camilla.
If things had continued that way, the siblings could at least have barely managed by