The classic science fiction-horror manga from the mind of Kazuo Umezz, creator of The Drifting Classroom, Orochi, and Cat-Eyed Boy!

When an industrial robot named Monroe begins to work at his father's factory, Satoru is fascinated. As he and his friend Marin spend more time with Monroe, they start to suspect there's more to the machine than anyone else realizes. But neither children nor adults are prepared for Monroe's violent awakening into consciousness.

Despite the upheaval in the world around him, the robot now called Shingo refuses to give up his search for Satoru and Marin, the children he considers his parents. He reunites with old friends and pushes himself to his literal limits, but the outlook for reunification seems bleaker than ever in the final volume of this classic tale of identity, social climate, and artificial intelligence.