Akio Fudo/Relationships

Royal Biblia Academy
Arata Kasuga - Akio originally viewed Arata, a Magic King Candidate, as an enemy due to being a member of Grimoire Security. As such, in their first direct meeting, she would attempt to kill him to stop the Breakdown Phenomenon he had caused. While her attempt would fail due to Yui's interference, neither one of them would hold a grudge against each other. In their next few encounters, Akio would treat him rather quite leniently and acted friendly towards him despite being on opposite sides. However, she is concerned of his Magic King status; once suggesting that he should be killed in his sleep in order to prevent him from turning into Astral Trinity, but immediately gave up stating that she does like him. Due to their similar carefree personalities, they actually get along very well and eventually become good friends. While she does find him a bit odd, Akio, for the most part, does not mind his perverted antics, finding him amusing and even charming on a few occasions. Although, she is also wary of his stripping magic, becoming embarrassed whenever he accidentally removes her clothes. Nonetheless, the two of them have become close, caring and protecting of one another in difficult situations.

Notably, after Lieselotte's return, Akio would teach Arata his second magic, her Mantra Enchantment, in order to defeat her. Upon passing her spell to him, he would witness a younger Akio continuously praying, which greatly influenced his resolve during his battle with Lieselotte. Afterward, their relationship would continue to improve, becoming more trustful and supportive of one another. During the Sky Library mission, Akio would reveal her tragic past to him, becoming surprised of his acceptance of her past. Stating that because of her painful experience, he was thankful that he was able to become friends with her and would protect her instead. Appreciative of his feelings, Akio would unwaveringly continue to support him, refusing to abandon him during his fight against Abyss Trinity. After Arata defeated Abyss, she would gratefully thank him, together with meeting the spirit of her mother one last time.

Since then, Akio has fallen in love with Arata, saying that it's fun being with him and calling him her "beloved."

Trinity Seven
Mira Yamana - Almost always seen together, Mira is Akio's partner and closest friend of the Trinity Seven. Prior to being members of Grimoire Security, Akio would one day extend her hand to a reclusive Mira who became isolated due to fear of her enormous magic. Giving Mira a wide variety of experience, Akio would greatly influence Mira in accepting her magic and inspiring her to become a person of justice. Since then, the two of them have worked closely together as partners. Despite their contrasting personalities, the duo gets along very well, trusting and caring for one another greatly. They are willing to fight and protect each other in any situation. Akio obediently follows Mira's orders, having faith in her decisions in when in doubt. Mira, although technically Akio's superior, continues to rely on and appreciates her support and friendship. Akio, who is normally easygoing and cheerful, enjoys teasing Mira at any chance. While usually flustered during those moments, Mira, nonetheless, continues to enjoy her friend's company. Notably, even outside of Grimoire, the two of them can be seen together working at a maid cafe. As one of the few people Mira truly opens up towards, Akio constantly watches over Mira and help shoulder her friend's burden.

Levi Kazama - Levi and Akio are good friends and rivals. Normally, they get along very well due to their similar easy going personalities as well as enjoyment in fighting. As such, even when they find themselves on opposite sides, the two remain quite cordial with each other. They both deeply trust and respect one another, viewing the other as a sort of rival. Whenever an opportunity arrives, they become eager to compete to determine which is the stronger of the two of them. But despite their rivalry, the two care for each other and remain friends, willing to fight and work together. During the School Festival Research Battle Competition, they were paired together to face off against Mira and Lilith.

Arin Kannazuki -They relationship is unknown.

Lilith Asami - They are good friends. When Arata accidenlty makes Breakdown Phenomenon they become brief enemies because of Lilith support of Arata ,fortunately notinng bad happend thank to Yui's interference. After this they are still friends and trustful teammes in Trinity Seven.

Lieselotte Sherlock -They relationship is unknown.

Yui Kurata -They relationship is unknown.

Family
Mother - Raised alone by her mother as Spriggans, the two lived happily together while protecting the Sky Library until Abyss Trinity destroyed their hometown on a whim. Using the last of her magic, Akio's mother would shield her from the destruction, but left her as the sole survivor. Her mother's desire to protect her would then become the main source of Akio's determination and strength. Returning years later to Sky Library and confronting Abyss, upon learning of his whimsical annihilation of her hometown and death of her mother, Akio would attack in anger. Afterward, after Arata defeated Abyss Trinity and destroyed Sky Library, Akio would tearfully be reunited with the spirit of her mother for the last time, thanking her as her mother moved on.

Father - Akio's father died of an illness long before her hometown's destruction. As a result, Akio does not have remembered much of him.

Sky Library
Abyss Trinity - As a child, Abyss Trinity destroyed Akio's hometown in a moment of boredom, causing the death of her mother as well. Years later, Akio would return to Sky Library and confront him of his actions. Upon learning that he had simply annihilated her childhood home out of lethargy and curiosity, she immediately attacked him out of anger and frustration despite being in her Spriggan form. Although her attack failed and became injured, she would recover and regain her composure. Eventually, she would help Arata become stronger to defeat Abyss, finally making peace with her past.

Arbitrator
Murakumo Amane - Akio is training to become an Arbitrator with Murakumo, both of them can be compared to be close to sisters, hence their love for fighting, as well as Murakumo acknowledges Akio as a fighter to become an Arbitrator. Murakumo was also eager to meet the new candidates who were Selina and Mira, but she especially found Akio the most interesting one, and likewise as Akio see's her interesting. They are considered to be friends, and she's the one who's currently training Akio to become an Arbitrator candidate.