Pacifica has two notable love interests in the story, including Fulle and Leopold. Shannon Casull is the son of Yuhma and Carol Casull, Raquel's younger brother and Pacifica's older foster brother. Shannon is a skilled swordsman who has sworn to defend Pacifica's life no matter what, but he is reserved and calm despite the many difficulties in the Casull siblings' lives. He is a very protective person. Although Pacifica is on his top priority list, he also looks out for Raquel, Winia Chester, the little girl Cin (Cz's compressed form) and eventually Zefiris. He is a practical man and can cook, clean and shop for groceries, but, when provoked, Shannon loses control of himself not listening to anyone. In episode 6 of the anime, Shannon becomes a temporary Dragon Knight ("D-Knight") and is capable of using the power of a Dragoon named Zefiris to fight the Peacemakers. At one point, Shannon loses his trust in Zefiris. During this time, whenever he merges with the Dragoon, it becomes nearly impossible for him defeat the Peacemakers. Later in the series, he gives Zefiris his trust and fully merges with her. The two fight alongside the Gigas (or Gigantes) against the two remaining Peacemakers. He looks almost exactly like Zefiris's old master, Lord Beckham Mauser, due to the genetic engineering used to create him, Pacifica and Raquel, as explained by Zefiris. In the end, Shannon manages to unlock the full power of the D-Knight and helps to retrieve Pacifica after her death, bringing her back to Earth. He later returns to his family farm with Pacifica, Raquel and Zefiris. Raquel Casull is the oldest of the Casull children, Shannon's sister and Pacifica's foster sister. She is a powerful magic-user and able to cast spells faster than many others. She has assumed a motherly role in the family and is always kind and calm. Like Shannon, she has a striking resemblance to Celia and Beckenham Mauser's sister due to the genetic engineering used in their birth. It is however noted that she is often left the odd one out because of Shannon and Pacifica's close relationship. She does not seem to mind, but she is considerably less close to either of her siblings as they are to each other. Her concern for Pacifica is clear in some episodes; for example, when they went to the cave of bugs to look plants for Pacifica's antidote,