Two years ago, the world was changed forever. The young Cloud Strife and his band of friends may have defeated Sephiroth and thwarted his plan to crash a giant meteor into the Earth, but this victory was not without great cost. The highly populated city of Midgar was nearly ripped apart in the conflict. Fortunately, many of the city's citizens were able to evacuate to safety, and in the years afterward have formed a new home called Edge. Final Fantasy VII: Advent Children revolves around Cloud and Tifa as they try to make new lives for themselves, as well as for those around them, in this new city. Together they run a courier service, and tend to their mutual friend Barret’s adopted daughter Marlene and a young orphan by the name of Denzel. Denzel, Cloud, and scores of children are suffering from a mysterious new illness called Geostigma. The children of the city have one other threat looming over their heads—a trio of powerful men are kidnapping infected kids for unknown reasons. Cloud is determined to save these young ones, not only from Geostigma, but from the kidnappers as well. He has no idea, however, that these men share a link to his old enemy, Sephiroth, and Cloud’s quest to vanquish them will bring him back into conflict with the demons of his past. If there is any hope in conquering these threats, it lays within the bonds of friendship between Cloud and his allies who saved the world once, and now must do so again.

Two hundred years have passed since the hero Bartz and his companions saved the inhabitants of Planet R—a world where crystals control the natural elements—from the threat of Exdeath. However, agents of the wizard Ra Devil steal the crystals of Earth, Fire, and Water. With three of the four crystals in his possession, Ra Devil seeks to claim the Wind Crystal, the final piece he needs to summon the destructive god Deathgyunos. Novice summoner Linaly—a direct descendant of Bartz—lives with her grandfather Hassam. After receiving an ominous message about the Wind Crystal, Hassam travels to the Wind Temple. Concerned for his safety, Linaly suggests that they make the journey together. On their trip, they encounter Prettz, a rowdy yet amiable swordsman, who is captivated by the young girl and accompanies the duo for his own mysterious reasons. During a battle, an antlion monster injures Hassam, leaving him bedridden. As a result, the responsibility of securing the Wind Crystal falls on Linaly, with Prettz assuming the role of her guardian as they continue their perilous adventure.

The year is 2065, and the planet of Earth is far removed from the place that it was in the past. Deadly alien creatures known as Phantoms have appeared all over the planet, and mere contact with these entities is lethal, whether it be an instant death or a prolonged decline. In order to try and salvage what little of the human race is left, large force-field barriers have been constructed around certain cities to repel the Phantoms. Seeking a more permanent solution to this invasion are scientists Aki Ross and her mentor, Dr. Sid, whose investigations have revealed that there exists a form of spiritual, Gaia energy that can eradicate the Phantom's presence from this world. Aki and Sid aren't alone in their quest through Final Fantasy: The Spirits Within; the human council and the military squad Deep Eyes are ready to help. Not everyone is convinced of this plan though. Aki, Sid, Grey, and their allies have to band together against forces both alien and human if they are to have any chance at restoring peace to Earth. An enemy whose mere touch is fatal, the Phantoms appear the more dangerous enemy, but as they will come to find out, their human nemeses are also not to be trifled with.

It is the year 2104 AD. The terrible war is over and peace seemed close in the world. However, there is one thing that can bring down this peace. That is the criminal organisation who's power and actions are widespread across the world... The Black Orchid. From the main countries of the world, the Storm Force was formed to take down the Black Orchid. They are also known under the code name Fire Storm. (Source: AniDB)