The day when humans disappeared, a shooting star shone in the sky...

In an empty laboratory, a robot girl, Scarlet, wakes up. She was created with the mission of "make smile as much people as possible", and shortly after her awakening, she decides to embark on a journey to find any human she could.

You will play the role of "Mother", a computer that manages all the robots around the world, and guide her. Don't worry, though! Scarlet is a smart robot, so all you have to do is act according to what she needs.

[Edited from Steam]