While everyone outside the city was celebrating Catherine's birthday and celebrating her becoming a Level Eight Mythical Wizard who owned her own Floating-Space City, Catherine sat alone at the top of the tower. The stairway from the circular ring to the gate looked like a spiral that never ended while she sat at the top of it.
It was a place that belonged only to her, as no one else could enter and she didn't allow anyone to enter. The only living life form was Pyros, the sphinx, who was dozing off while guarding the door.
Pyros was the nth generation of Pyros, passed down from generation to generation, and it accompanied Catherine, who would never reach the end of her life.
Catherine had no idea how long it had been since she celebrated a birthday, until that moment, when she suddenly remembered that she'd had a birthday; 4,000 years ago on that exact date, she had been born in a small town in the Mara Kingdom, and she was the daughter of a court pianist.