Frederica Irving is the eponymous "Millennium Girl" and one of the main playable characters of Etrian Odyssey Untold: The Millennium Girl. Frederica is of the gunner class first introduced in Etrian Odyssey II. She is a mysterious girl found in the ruins, Gladsheim, and was put into a self-induced cold sleep for a mysterious reason. She had as a result lost her memory.
Later on in the game, Frederica regains her memories when she enters a chamber in Gladshiem. She remembers her old nickname Ricky. After finishing the 2nd floor of Gladsheim, it is revealed that Frederica hails from 1000 years ago. She participated in a activity to go into a 1000 year slumber to aid mankind in destroying the Yggdrasil core from destroying the world.
Also, it is revealed through the plot that Frederica once had a father that was a scientist working on the Yggdrasil project. But for an unknown reason, he had vanished before the project's completion and Frederica at the time befriended M.I.K.E. and was revealed to be her only comfort at such a hard time. It was her father's disappearance that later helped her make the decision to undergo cold sleep for a thousand years.
Powers and Stats
Tier: High 7-A, possibly High 6-A
Name: Frederica Irving, nickname "Ricky"
Age: Chronological 1018+, physically 18+
Powers and Abilities: Superhuman Physical Characteristics, Mastery over firearms, Healing (With Medic Bullet), Can bind a target's body parts (Head Snipe, Arm Snipe, Leg Snipe), Statistics Amplification, Fire Manipulation (With Fire Rounds), Ice Manipulation (With Ice Rounds) and Electricity Manipulation (With Lightning Rounds). More with Grimoire Stone skills (Some monster skills can inflict various status effects).
Speed: Massively Hypersonic (Capable of keeping pace with Etreant, can dodge the Wyvern's lightning breath)
Lifting Strength: Unknown, likely Regular Human (In the intro cutscene, Frederica is shown to be capable of lifting a longsword, albeit with difficult)
Striking Strength: Large Mountain Class
Durability: Large Mountain level (Can take hits from the Storm Emperor), possibly Multi-Continent level (Can survive Primevil's attacks at full power, though this may be attributed to in-game mechanics)
Stamina: High (Can battle and stay in the Yggdrasil Labyrinth for days, most notable during one mission where Frederica and the rest stayed three days straight in the labyrinth without going back to Etria)
Range: Standard Melee range, higher with firearms
Standard Equipment: Pistols
Intelligence: Very High (Was a scientist participating in the Yggdrasil Project, could easily operate the complicated machinery in Gladshiem)
Weaknesses: Most skills become unusable when she runs out of TP
Notable Attacks/Techniques: See the Gunner's page on the Etrian Odyssey wiki