Age
12
A young girl who the protagonists encounter in "Lostbelt No. 2: The Eternal Icy Fire Century, Götterdämmerung". An innocent and sweet girl, she is from a world where death before the age of 25 is common, and people are treated as mere livestock. Gerda is naturally, unaware of the world beyond her gates, and takes interest in the protagonist and Mash when they arrive in the Lostbelt.

Fate/Grand Order (Game)
Fate/Grand Order is an online, free-to-play role-playing mobile game developed by Delightworks using Unity, and published by Aniplex. The game is based on Type-Moon's Fate/stay night franchise, and was released in Japan on July 29, 2015 for Android, and on August 12, 2015 for iOS. The game is centered around turn-based combat where the player, who takes on the role of a "Master", summons and commands powerful familiars known as "Servants" to battle enemies. The story narrative is presented in a visual novel format, and each Servant has their own scenario which the player can explore. In 2015, the Chaldea Security Organization draws on experts of both the magical and mundane fields to observe the future of mankind for possible extinction events. Humanity's survival seems assured for the next century—until the verdict suddenly changes, and now eradication of the species awaits at the end of 2016. The cause is unknown, but appears to be linked with the Japanese town of Fuyuki and the events of 2004 during the Fifth Holy Grail War. In response, Chaldea harnesses an experimental means of time travel, the Rayshift technology. With it, Ritsuka Fujimaru (a young man or woman, depending on the player's choice of gender) was newly recruited to the organization, and a mysterious girl named Mash Kyrielight, can travel back to 2004 and discover how to save humanity. A grand order to fight fate has been declared—an order to change the past and restore the future.[12] Following the events in Fuyuki, Ritsuka Fujimaru and Mash Kyrielight must restore the Foundation of Humanity by retrieving powerful Holy Grails.