"Aqua! You were supposed to wake me up!" Ruby whispered sharply, her pink eyes wide with frustration. "Ai was performing today!"

Aqua barely had time to respond before the sound of approaching footsteps reached the room.

In an instant, Ruby fell silent. She puffed her cheeks, turned her gaze upward, and let out a small, innocent baby noise, kicking her legs lightly.

The door slid open.

Ruby stared ahead with wide, sparkling eyes, quiet, harmless, and indistinguishable from any ordinary baby.