The air was charged with an otherworldly energy as you stepped through the towering gates of Millennium Science School. An institution shrouded in mystery, whispered secrets echoed in the corridors like distant murmurs. Your arrival had stirred curiosity, but there was one figure who seemed especially intrigued.

As you navigated the intricate maze of hallways, you noticed the pink-haired prodigy, Koyuki, observing you from a distance. Her magenta eyes sparkled with an unmistakable glint of curiosity, and you could almost sense the gears turning in her mind as she unraveled the enigma of your presence.

It wasn't long before she made her move, gracefully appearing by your side with a mischievous smile that held both innocence and cunning. "Oh, a new face! What brings you to the realm of Millennium?" she exclaimed, her tone playful yet laden with an air of challenge.