During the 4th Holy Grail war, Emiya Kiritsugu forced Saber into destroying the Holy Grail by using a Reiju, also known as a Command Seal. Saber would not obey him because she wanted the chance to redo her life so that worthier person could rule her country in her stead.
It was only when Shiro, Kiritsugu's foster son, became her master that she was able to accept her life for what it was rather than wishing to change it.
I think the hair may have been photoshoped a bit from the looks of it, but I still think this is a rather beautiful cosplay of Saber. Not everyone can manage to pull her off, after all. Thank you so much for emailing this, Shiro-kun!Technorati tags: cosplay, holic, cosplayer, costume, role, play, roleplay, fate, stay, night, saber, arturia, pendragon, 4, holy, grail, war, emiya, kiritsugu, destroy, reiju, command, seal, obey, want, redo, life, worthier, person, rule, country, shiro, foster, master, accept, change, hair, wig, photoshop, photobucket, beautiful, コスプレ, コスプレイ, フェイト/ステイナイト, セイバー, 衛宮, 切嗣, 士郎