When explorer Ronan's helicopter crashed in the no-man's land of the South Pacific, he accidentally discovered a micro-civilization hidden in a giant mushroom forest. The humans here are only the size of a thumb, but possess bioengineering technology that surpasses modern technology. In order to repair communication equipment and return to the real world, Ronan had to become the mechanical consultant of this Lilliputian country, but gradually discovered that this mysterious country was inextricably linked to his grandfather who had been missing for many years...
