Enthrea, a suffering planet, disasters are continuing to occur because the pillars of the planet are already fragile.This fragility is caused by the greediness of its residents who are always exploiting the natural resources in Enthrea without doing any preservation.
The people who has been chosen to save the world by the elders of the planet has established a large organization called ZEFON (ZEbadian FOrtifier Nature). ZEFON has a noble purpose to provide energy to keep the planet's pillars from the destruction with an instrument called the ZEFON reactor. This reactor was being watched by several chosen people who called ZEFON ELITIA. They were located in every continent in Enthrea. But after several years of calm, these disasters begin to occur more frequently than before and the planet was become more vulnerable.
Millia, an agent of the organization named SOFRA (Soldiers Organization For Recovery Attemption) was given the task to gather the survivors to start REPRO (Recovery Project). Millia is always tries to find the potential people who want to follow the REPRO, unfortunately a lot of great people in Enthrea refused to follow her.
Finally, in her desperation, Millia was no longer looking for great people to follow the REPRO, she's just trying to find those who voluntarily want to follow it and find some people that want to do it although they have many weaknesses. These people have unique characteristics that made Millia trust them very much. But then they have absolutely no idea for what they should do except several instructions from the Great leader of SOFRA that Millia even hasn't known by herself. These instructions were always sent in weird manners.