Because they spent so much of their childhood apart Hildegund and Freidis were never really close. They still care about each other. Some other younger siblings are jealous of older ones, especially when the older ones inherit all the titles and land, but Hildegund is actually happy that she can have more free life. Or that was the plan. When hildegund returned home she discovered her parents are dead and Freidis has disappeared. Now it's up to Hildegund to find her.

When Hildegund and Julius were children they seemed to be each others worst enemies, but actually that was part of the playful relationship they had. When they got older many thought that they'd become a couple. However they both acted very tsundere towards the other so that didn't happen.

When Hildegund spent years travelling around the world she often thought about him fondly. Part of her thought that perhaps when she returned home they could finally discuss their relationship like adults. But when Hildegund returned she found out that Julius had become the Emperor's loyal knight. So they became each other's worst enemies. Still Hildegund wishes that she could just talk to him to find out why he did what he did.

After Hildegund saved Tulus from a cave invaded by bandits they have became friends. It took Hildegund months to tell him that she works for Green-hoods and even that confession was done only because the situation was dire. Initially Tulus was angry at her for keeping a secret like that, but eventually he came around and even joined the Green-hoods. Unfortunately some months later Julius managed to capture all Green-hoods (except Hildegund), including Tulus. Now it's just matter of time before Tulus gets executed unless he either manages to escape or Hildegund can save him.