Kiritsugu Emiya

Kiritsugu Emiya is Shirō's adoptive father who saves Shirō following the massive Fuyuki fire. At age 29, he becomes Saber's Master for the fourth Holy Grail War. At the conclusion of the fourth Holy Grail War, Kiritsugu is afflicted with a curse by Angra Mainyu where his body weakens and becomes lame. He eventually passes away from the curse at age 34.

Personality
During his lifetime, Kiritsugu strives to be a Hero of Justice, a defender of humanity who could protect the weak. He feels he failed to do so, but his efforts were a source of inspiration for Shirō. Kiritsugu is a Magus, but does not teach Shirō seriously and assumes he has little talent for the craft.