A subspecies Holy Grail War that has long been out of control has quietly begun.
The ordinary college student Suya Amamiya, an outsider who was just a part-time tour guide, suddenly awakened to a "player memory" that does not belong to this world overnight.
He could see the Servant Panel.
Understand the rules of the Holy Grail War.
Even... Observe the spiritual essence of the heroic spirit.
And when he witnessed the servants being corroded by the black mud,
A forbidden technique was born in the Holy Grail——
Will keep updating this time