Hero's Call (主人公のコール, ˈhirōkôl; also known as "Slayer Maker") is a rare support type sacred gear wielded by Asuna Lucifer, the sister of Ichiro Lucifer. The sacred gear has the ability to turn the wielder, objects, or people into different types of slayers. First revealed in Life 22 when Asuna used it on Ichiro.