It's the summer of 1945. 3 years have elapsed since the war between Japan and USA began. Gen is a young boy living a struggling yet satisfying life in the city of Hiroshima, that has been strangely spared by the bombing taken in almost every other Japanese City. Food is scarce, and Gen's family is suffering from severe malnutrition, which endangers his pregnant mother. There isn't much spare time as Gen and his little brother Shinji help their father and mother at work and try to make sure their family survives the tough times. Little do they know, what the Americans have in store for the city of Hiroshima and as of the 6th of August 1945, their lives are about to change dramatically.

Nanako is a an inept apprentice nurse to the brilliant young Dr. Kouji. Now for some reason, Nanako is always being targeted by various elements which makes Nanako wonder if she has done anything wrong. But there are certain secrets to Nanako's past that only Dr. Kouji and his family know about.

The year is 2046. Detective Ross Sylibus is transferred to Mars when a country singer on her flight is murdered. Making matters more complicated is that the singer is a "Third"—a robot that looks and feels like a human. Sylibus is partnered with Armitage—a beautiful female cop with a bad attitude. As they investigate the murder of the singer and other women on Mars, they uncover a conspiracy that can have them both killed by the Martian government.

A few years after they first met, Naomi Armitage and Ross Syllabus have started a family. Despite their normal lives, they must keep their identities a secret because many people believe that Robots do not deserve equal status with humans. Ross has an opportunity to abolish these ideas on Earth through a vote, but organizations in the shadows are working so that it doesn't happen.