Ruler.
When the form of a certain Holy Grail War is very special and the outcome is unknown.
Or, the Holy Grail War may distort the world.
"Only under these two circumstances can the adjudicator be summoned to the present world... Of course, we all know that you have encountered many of the former and many of the latter."
Fujimaru Ritsuka couldn't understand.
She couldn't figure out why she was here listening to the Servant she summoned.
"... I know there are always many abnormal situations." She said weakly, "But... No matter what, shouldn't this job placement fall on you?"
The corner of her servant's mouth curled up slightly, and the answer sounded sweet yet inhumane: "Unfortunately, Master, the Holy Grail seems to have determined that you are more suitable for this position than me."
Fujimaru Ritsuka: "..."
——Without Chaldea as a backup, and without a reliable Paladin schoolmate by her side, she actually had to bring a Servant with whom she had only met once to decide this Holy Grail War.
Not a big problem. When she faces a world that may need to be saved...
"Okay," she murmured, "I'm ready. Let's go, Mash Kyrielite Alter."
"Sorry, what did you just call me?"
"Mash Kyrielet Alter--is there a problem? This is the Holy Grail War, and we all know that hiding the identity of the servant is the basic key to action."
"Okay, if you insist..."
※The story of FGO X FSF. The last master, come forward bravely!
Intention: Starlight will eventually come