Atom

アトム

Loosely based on Osamu Tezuka's classic character, "Astro Boy," Atom in the Pluto series is a highly developed robot. He is consistently ranked among the world's top seven robotic technological advances in science, to the extent that even Gesicht's sensors have trouble distinguishing him as a robot or human.
He works with Gesicht to help uncover the truth behind the recent chain of murders.
He has a sister, Uran.