When you're granted an offer to change the past, would you take it? When you're granted power surpassing that of the King, would you accept it? Lelouch vi Britannia, formerly the 99th Emperor of the Holy Britannian Empire, has returned to the day when it all began... and he intends to change everything. Time-Travel Fic

How does the Grail choose a Master or a Servant? Fact of the matter is, it knows the difference between want and need. Masters of the Fourth Holy Grail War know they want a strong Servant, but the Grail knows the Servants they need.