FSN Realta Nua UBW Good End -Sunny Day Part 3

If you could built up enough “affection points” with Saber, she… remains alive after shooting the Grail. Rin explains that technically, Saber is a normal Familiar and not a Servant anymore, thanks to how Shirō made her actually want to stay. Saber is OK with living in that era since she still got her reply by watching Shirō fighting Archer, the fight between past vs. future, Shirou vs his heroic self, much similar to looking into a mirror for Saber, which she learned that she should live a new life instead of trying to fix what happened in her past life. Rin then says that supplying mana to Saber will be costly and Shirou promises to help her by “supplying” Rin with mana. Shirou recieves a humorous reaction from Rin, knowing what he’s indicating.