Shining Trapezohedron

That was a story from long, long ago, from a crack in time.

Within the endless sea of time, a girl had traded her own history and existence for a chance to change the past.

She had returned to the distant Age of Gods, turning her back on the ruins of a world withered in despair. From then on, the individual named Illya existed in no world at all.

Though she sometimes felt afraid and lonely, she had made up her mind long ago.

For Miyu's world to survive, and for her family in her own world to be safe from harm, she was willing to do it.

Even if that was a little too cruel for an elementary schooler.

In the distant Age of Gods, Illya, who was striving to save the world and humanity, had become an Elf at Pandora's side, accompanying the "girl" through spring, summer, autumn, and winter.

"Brother."

Beside a campfire late at night, Illyasviel floated above the sleeping Pandora and gazed up at the star-studded sky.

The day before yesterday, she had missed Miyu and Kuro. Today, she missed her parents and brother again.

She looked at her arm, which had become an almost transparent wing. "The birthday present Brother gave me is gone too."

That was only natural. She no longer had a physical body, after all, and the bracelet had probably fallen into the sea of time.

If I save the future, what will a world without me become?

It was the first time she had considered that question. Perhaps Miyu would live happily as brother and sister with another "Shirou Emiya" in her world, without being drawn into danger because she was a Natural Holy Grail.

In her own world, Mom and Dad would probably still spend lots of time away