Ramshackle[]
MC[]
In Book 3, Azul coerced MC into making a deal with him with the intention of taking the Ramshackle Dorm. He gave them a mission to obtain a picture from the museum, in return for their dorm should they be successful. However, he sent Jade and Floyd to thwart their plan as he had no intention of returning it to them.
Near the end of the Book 3, however, he and the MC had a time alone in which he told them the reason for his actions, with the latter replying by giving him words of encouragement, which he was happy to hear. In Book 4, he helped them when they landed in Monstro Lounge when they were being chased by Scarabia students. And accompanied them back into Scarabia to solve the mystery behind Kalim's change in behavior and to learn about the mysterious vice dorm leader, Jamil.
Heartslabyul[]
Riddle Rosehearts[]
Azul sees Riddle's abilities favorably. He once murmured to himself during the entrance ceremony that he wants to possess Riddle's signature spell for himself.
In Book 6, they were paired together to infiltrate the S.T.Y.X organization. Azul had a particular hard time working together with Riddle due to his impulsiveness, inflexibility and stubbornness. Which led him to undermine Azul's capabilities. However, they soon managed to work effectively with each other and be on good terms, although Riddle is reluctant to accept Azul's offer of friendship.
Savanaclaw[]
Leona Kingscholar[]
Azul does not seem very fond of Leona, referring to his complaints during Beanfest as “the yowling of a beaten lion”. This antagonism returns later when Jack, in one vignette, breaks a bottle of durian juice in Sam's shop and Azul, pleased, decides to charge the bottle and all associated cleaning fees to Leona.
When asked to team up with either Riddle or Leona during Book 6 Azul chooses Riddle. Later on, however, Azul becomes frustrated with Riddle and and in a comment it is revealed that he still holds a grudge against Leona for the events of book 3.
In Book 5 Azul teases Leona by insinuating that, unlike the boy, he doesn't torment others for sport.
Jack Howl[]
Octavinelle[]
Jade and Floyd Leech[]
Azul went to the same school as Jade and Floyd during their childhood at the Coral Sea, but they only became friends after the twins took an interest in him when they found him one day curled up in his pot. Since then, they have been very close friends. He is one of the few people in the school that does not show excess fear or constant frustration with the twins though he has always described them as very fearsome opponents. This is referenced during Beanfest when he told Trey Clover that if he encountered Jade, to walk away slowly without making eye contact.
Due to being seen as the more 'reasonable' one of the trio along with being the owner of Monstro Lounge, it is often assumed that he is able to boss the twins around or make them do what he wants, but this is completely false. Azul has said multiple times that he has no control over the twins nor do they work for him, they simply decide what they want to do.
Azul acts like his relationship with the twins is purely superficial and business-like, and we see this in Book 4 when Azul claims that the twins would leave him without a second thought if he became boring. However, during the events of Book 3, when Azul is having a mental breakdown over the loss of his contracts and the Leech twins show up, Azul is shown to be overjoyed that they came back to him. He hopes both Jade and Floyd would side with him, asking for their powers. But Floyd's remark triggers Azul’s insecurities about himself, becoming overwhelmed that he might end up lonely again. Afterward, their relationship seems to be the exact same implying that nothing changed. Additionally, while all parties have claimed that the twins would leave Azul if he became 'boring', neither of the twins has shown any indication of being bored with Azul when he's acting like himself. This remains true despite the personality changes he's gone through since meeting them.
Scarabia[]
Kalim Al-Asim[]
Azul notes Kalim to be generous and a "goody two-shoes". In Book 4, Azul offers Kalim a lot of his help during his stay over at Scarabia for seemingly no gain; though in reality it's part of his plan to uncover the truth behind Kalim's supposed mood swings. He also helps Kalim to reflect on his relationship with Jamil, as well as Jamil's true nature, and he's shown to be understanding of Kalim's situation. However, he notes that to calculating individuals such as himself (or Jamil), Kalim's overly positive demeanor can come across as off-putting.
Azul is shown to be impressed by Kalim's signature spell, remarking that it's extremely marketable.
Jamil Viper[]
Azul and Jamil are classmates, and Azul has been curious about Jamil since their freshman year. He noticed that Jamil's been maintaining a perfect score in the middle in his studies, which made Azul suspect that there's more to Jamil's personality. He confirms this through the plot of Book 4, where he's able to observe Jamil's behaviour more, remarking that Jamil perfected the art of feigning defeat. He also tells Jamil that he believes the two of them would get along well, and even asks if he would like to transfer to Octavinelle - something that Jamil promptly refuses.
