Hijiri Kasuga/Relationships

Family
Arata Kasuga As childhood friends and cousins, Arata and Hijiri would develop a close relationship, especially after the former moved in with her family upon losing his parents. Additionally, Hijiri, secretly a mage, had been assigned by the Royal Liber Academy to monitor her cousin while addressing his daily necessities. Nevertheless, the two have a deep understanding of one another, willing to fight and protect each other from harm. Hijiri, in particular, possesses romantic feelings towards her cousin in spite of his perverted and nonchalant nature. As such, she can become jealous of his interactions with his female companions. During the Breakdown Phenomenon that destroyed their hometown, Hijiri prioritized protecting Arata by entrusting Sora to him and instructing her grimoire to grant his wish, delivering a kiss before disintegrating. As a result, her disappearance would eventually turn into the catalyst for Arata's decision in becoming a magus in order to rescue her.

However, during her exile, Hijiri would learn of Arata's fate as the Demon Lord and become determined to liberate him from his destiny by recreating the world, joining Iscariot in the process. The two would later happily reunite despite being adversaries and meeting in battle. Nevertheless, the cousins continue to remain caring and protective towards one another.

Trinity Seven
Arin Kannazuki - As members of Iscariot and the Trinity Seven respectively, Hijiri and Arin are enemies despite their lack of interactions, as well as rivals for Arata's affection. Most notably, Arin and Hijiri have an unknown connection due to their identical appearances, as well being users of the Chaotic Rune magic. Additionally, they both also possess the Ruina and Partum Themas from the Ira Archive. However, their personalities differ quite a bit as Hijiri displays more emotions than Arin who is much more reserved. The two would first meet during Arata's mission to the Royal Liber Academy where Arin saved Arata and Lilith from being destroyed by Hijiri by using her recently acquired Demon Spear Gae Bolg to break down time to reach them. Arin's Gae Bolg allows her to nullify magic from the Ira Archive, making her a natural opponent to Hijiri. Although the two are on opposite sides, they nevertheless have respect for one another due to their strong devotion towards Arata. After Arata is captured by Anastasia-L, Arin agreed to work together with Hijiri to save him, trusting her because of Hijiri's feelings for Arata.

Iscariot
Lugh - As members of Iscariot, Lugh and Hijiri are comrades with the same goal of defeating the Magic King. The two seem to get along well with each other in a friendly and respectful manner, as well as watching over one another in battle. On one occasion, Lugh attempted to defend Hijiri from an attack from Akio despite this eventually to her capture. Lugh, in particular, seems to care for Hijiri's well being, becoming concerned over her unstable health and even willing to fall along with her if she ever tripped, much to Hijiri's astonishment. However, Lugh has also been shown to be intimidated by Hijiri's behavior on some occasions, becoming frightened during Hijiri's first meeting with Anastasia-L. Nevertheless, the two seem to trust and amicable with one another. During battles, their teamwork has been noted to specialize towards the offensive.

Royal Liber Academy
Anastasia-L - As saints, Anastasia-L and Hijiri have an opposing relation due to their objectives regarding Arata. In their initial meeting, the two would interact with one another in a seemingly friendly and polite manner. However, their tense and hostile discussion of Arata would even Lugh and Akasha's headmaster to become frightened. Nevertheless, Anastasia would continue to treat Hijiri favorably, happily commenting on Hijiri's devotion to Arata. Although, she would also become quickly threatening after Hijiri offered to fight her. As such, Hijiri is especially apprehensive and intimidated of Anastasia due to her dark nature and magic, as well as becoming more protective of Arata.