[The tough one, the one she kept to herself unless absolutely necessary. However, there is nothing to lose or gain here beyond trust and considering their history it's important to show some kind of trust. Saber doesn't need to give all the details.]

I can understand the confusion. My situation in the Grail War was unique to say the least. [Deep breath as she thinks of how best to phrase it.] I made my pact as I was on my deathbed to attain the Holy Grail and serve as a proper Heroic Spirit after I had my wish granted. For this reason I did not go to the Throne of Heroes after the end of the Grail War as most Heroic Spirits do but back to my dying self. When I finally gave up on the Grail I was approached by the Valkyries and brought here where I was healed. In return for this I must serve Thor to protect this city. Thus I am human again and not a Heroic Spirit.