Saito Hiraga (Born 9th December) is the male protagonist of the series who was summoned from Earth (specifically Tokyo, Japan) to be Louise's familiar. Walking home a portal of some kind opened in front of him, he touched it and was sucked through, then finds himself in Halkeginia and meets Louise. Then the bond of him being her familiar, involves having a kiss with the familiar, which was a shock to him. At first Louise and Saito did not get along and Louise treated him quite poorly. But as the series progresses, the two eventually come to understand each other and fall in love. Whenever Saito pays any attention to another girl, especially her chest, Louise is quick to punish him. In the anime, Saito's punishment is usually a whipping from Louise's riding crop, a blast from her void explosion spell, or sometimes he is kicked in the crotch by Louise.