Emiya Shirou(biological father)
Miyu Sakatsuki(biological mother)
Emiya Miyu(biological sister)
Sakura Matou(adopted aunt)
(It is shame that Miyu and Sakura never meet eachother and become best friends and there you have folks)Illya Von Einzbern(adopted aunt)
Tohsaka Rin(adopted mother)
Irisviel Von Einzbern(potential grand mother)
Emiya Kiritsuga(potential adopted grand father)
(Archer)Heroic Spirit Emiya(Alternative version of his biological father Emiya Shirou)
(Assassin)Heroic Spirit Emiya(Alternative Version of his potential adopted grand father Emiya Kiritsuga)
(Caster)Heroic Spirit Von Einzbern(Alternative version of his potential adopted grand mother Irisviel Von Einzbern)