Zoku's Links
Arturia's older sister. An incident that Soleil instigated, pushing Arturia away from her, had caused a few years of resentment and anger from her younger sister. Nowadays, their relationship has grown back well after she had come clean and revealed about the Collective's nature.
Soleil's younger sister. An incident that had caused a massive fall-out between the two had urged her to move into the Fortress of Meropide as a tantrum/rebellion of sorts. Nowadays, their relationship has grown back well after Soleil had come clean and revealed about the Collective's nature.
Julius (Jules) is Claudia's son. Though Claudia is scared that she won't be a good mom (as she is bad with kids), she loves her son very much and teaches him all about her research. Sometimes (along with Nero) they would go out and show him all about demons.
Claudia is Julius' mother. While he craves his dad's approval and attention, he also basks in his mother's love and support. He inherited his mother's love for research and gained her sharpshooting ability though he does prefer swords (later on, Aunt Letta makes a gunblade for him especially adjusted so he can shoot and slash at the same time)