Akikan

...Nah, I'm not the strongest, and I didn't desire a miracle.

The fighting's a nuisance so I try not to.

And from that you decided to become a disciple at Taiga's dojo.

Upon laying one's hands on that cup, one's every desire would be granted.

The Holy Grail war.
The ritural fro the materialisation of the Holy Grail, the ultimate artifact.
There are two conditions for participation in the ceremony. One must be a sorceror, and one must have been chosen by the Holy Grail. (However, one is chosen without regard to one's experience with sorcery.)

The chose masters are seven, and to each is given a Servant.

There is only one Holy Grail. For you, who desire a miracle. With your own strength, prove your superiority.