Underground City, -243F.
A dimly lit room.
An enchanting melody flows through the darkness.
It's the sound of a melodica, with music turning gracefully, sometimes lively like jade beads skittering on a tray; sometimes gently soothing, like a breeze gently grazing.
Woo~
The last note concluded, and the melody lingered in the air.
As if hearing celestial music, one's ears are momentarily enlightened.
"May I ask what this piece is? My database has no records of something similar."
A giant combat robot, four meters tall, sits cross-legged on the ground, blinks, and, with its mechanical head lowered, asks the housekeeping robot in front of it in confusion.
The housekeeping robot is only 1.75 meters tall, with a fully mechanical bionic structure, resembling a human. It's dressed in a black suit, with a white shirt inside and a red bow tie, looking aptly attired, exquisite, and meticulous, like a graceful robotic butler.
