三民網路書店One summer, fifteen kids innocently wander into a nearby seaside cave. There they meet a strange man who invites them to play an exciting new video game. This game, he explains, pits one lone giant robot against a horde of alien invaders. To play the game, all they have to do is sign a simple contract. The game stops being fun when the kids find out the true purpose of their pact.
The underage pilots of Zearth are starting to crack under the pressure. In the beginning all they wanted to do was play a fun game. Now they're fighting for their lives and the fate of the planet. Say goodbye to childhood. It's time to grow up and be a hero.
