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The Battle of AcesThe first game of the Potable Continuity is about the Dark Piece Incident, where the nine heroes are involved and each character has his/her own story route. However, most of the story routes are contradictory with each other, leaving only a few of the events being Canon. Due to the small cast, the story is strongly focused on the Yagami family. The Dark Piece Incident takes place directly after the Book of Darkness Incident; the story begins that a force field appears around Uminari City and the remnants of the Automatic Defense Program/the Darkness of the Book of Darkness/NachtWal are revived, in form of the Dark Pieces, darker and negative versions of the nine heroes. The programs of the Eternal Ringnote , the Materials (who are believed to be remnants of NachtWal in this game) are the ones who are summoning the Dark Pieces. The goal of the Materials is bringing darkness and destruction over the world and a few mentions state that they want to revive U-D, whose upcomming revival is the reason of the revival of the Materials in the first place. In general, each character has to defeat the Dark Pieces in order to keep the city in save. Defeating the Materials will reduce the production of Dark Pieces drastically. Every character has also his/her own personal conflict, but its resolved after defeating a certain character. Whenever a hero(/ine) defeats the respective last enemy, the story skips the part where the rest of the Dark Pieces would be defeated, and the aftermath of the incident are shown, which usually takes place three months later. The story of the second game will take place at that time.
The Gears of DestinyThe second game is about the Unbreakable Dark Incident, that not only involves the revived Materials and new Dark Pieces, but also time travelling characters. Unlike the previous game, the sequel doesn't have story routes for each character, but a long story with twelve levels named as "Sequences", where all characters are involved. Each Sequence has its own main character(s) who have to fight the "targets" to continue the story. If there are multiple playable characters or targets, the player has the right to choose them, which can (but not always) affect story. The first eleven Sequences are about the main story, the Unbreakable Dark Incident, and the 12th Sequence is the Playable Epilogue, which takes place a few months after the main story. The nine heroes from the previous game reappear again, as well as the three Secret Characters, the Materials. Eleven more characters, including U-D appear in the sequel. The two new main characters, Amitie Florian and Kyrie Florian, as well as the Materials, play a major part in the story.
PrologueThe prologue is told by a young Amitie Florian, who introduces her family and herself. The Florian family are living on the different world Eltria. She tells her younger sister, Kyrie, that Professor Granz Florian's work is important for humankind. To help their father's job, the sister have to grow up so they can support him.
Main character: Amitie Florian; Sub-character: Kyrie Florian
Main characters: Nanoha Takamachi, Yuuno Scrya
Main characters: Fate Testarossa, Arf
Main characters: Hayate Yagami, Reinforce Eins
Main characters: Signum, Vita, Shamal, Zafira; Sub-character: Kyrie
Main characters: Chrono Harlaown, Liese (Lieselotte and Liesearia)
Main character: Rynith
Main character: Presea Testarossa; Sub-character: Rynith
Main characters: Vivio Takamachi, Einhard Stratos, Thoma Avenir
Main character: Kyrie Florian
Main characters: Stern the Destructor, Levi the Slasher, "Lord" Dearche
Main characters (first round): Signum, Vita, Einhard Stratos, Zafira, Shamal, Chrono Harlaown, Kyrie Florian
Main characters (second round): Nanoha Takamachi, Fate Testarossa, Unison Hayate Yagami, Amitie Florian, "Lord Deache" TRINITY, Vivio Takamachi, Thoma Avenir
Main character: Yuri Eberwein