Fate/Extra CCC from Marvelous AQL and Imageepoch has new characters like Jinako Karigiri. She’s an Internet addict and apparently a slob who leaves half-eaten junk food on the floor.
Somehow Jinako got Karna as her Servant. Karna is a lancer who appears in Fate/Apocrypha, a light novel written that focuses on Joan of Arc. In Fate/Extra CCC, Koji Yusa (Nier in Nier Replicant) voices Karna and Aoi Yuki (Cyril in Sol Trigger from Imageepoch) is Jinako.