Sophie Hennes

She's the younger sister to Martin. The two lost their parents and stayed together at the orphanage(s). However, Martin went missing and his disappearance is tied to El Dorado. Staying at the Katrina Home, the Sister of the orphanage looks after Sophie, teaching her martial arts and being her center of support. In her quest to find Martin, she got herself entangled in the makai world and Golden Knight Sword.