Illya's relationship with the others:
- Alak - Illya is not especially fond of Alak, often feeling threatened by his oddly likable and flirtatious personality
- Aleksy - Definitely prefering Aleksy from the two twins, Illya has a somewhat friendly interaction with him; they sometimes talk but Aleksy's more reserved personality prevents them from being friends
- Aoi - Illya rarely meets with Aoi but when it happens, the two spend hours talking about everything; although not friends, Illya sees Aoi as a long forgotten relative he remembers he missed only when meeting him again
- Cain - Slightly afraid of Cain, Illya respects the man and knows when to stop messing around; he is grateful that Cain offered him a job, considering most people dislike necromancers
- Cecil - Illya views Cecil as a superior and nothing more; he knows not to cross bondaries and annoy a high arcane master
- Damien - Illya's respect for Damien's determination has turned into love; he looks up to her and considers himself lucky for finding such a wonderful woman to love him
- Elyon - Good friends; Elyon is one of the people Illya feels most comfortable being around; her knowledge about death and the way she treats spirits make Illya feel less alone in a world that mostly cares about the living
- Kara - Has a lot of fun bickering with Kara about the way they use their magic, being completely opposite of one another; sees Kara as a long-lost cousin he gets to see at family reunions and who could become his best friend in a matter of hours
- Kieren - Illya finds Kieren to be maybe a little too hyperactive, but at the same time he does enjoy Kieren's lively nature as well as his always positive thinking
- Klaus - Best friends for over a hundred years, Illya acts as the grounded one between the two, often keeping Klaus at bay from wrecking havoc; they bonded over their different ways of living; trusts him with his life
- Marshall - Illya likes to spend his Friday nights with Marshall, partying at some festival or concert; he's always amazed by Marshall's ability to find the most obcure parties and always likes the outcome when spending time with him
- Mina - Illya and Mina are more strangers than acquaintances, only meeting at the bar; they rarely talk and therefore Illya doesn't have much of an opinion about her
- Mollymawk - Illya sees Molly to be at an opposite end; he hardly enjoys Molly's desire to save lives, but he does somewhat admire his determination
- Nathan - Illya sees Nathan similar to himself, silent and guarded; they both use unconventional magic methods, which makes Illya feel more comfortable around him than around other warlocks
- Novalie - She reminds him of his younger self; sometimes gives her advice even if he knows Novalie doesn't need it; sees Novalie as a younger sister
- Selene - Although somewhat used to Selene's presence, Illya rarely interracts with her; he views her as too high-class for his liking
- Stephan - Illya and Stephan are acquaintances; Illya often questions Stephan's decision of being a familiar but is not close enough to him to ask for his true reasons
- Viola - Illya has gotten used to Viola's presence at his work place and quickly learnt how to avoid her constant wave of questions; is pretty neautral about her as long as she doesn't pry too much
- Yulya - Uncertain if Yulya's natural charm or her powers were the ones who pushed him to have a one night stand with her, Illya still respects Yulya, seeing her as one of the very few women who aren't afraind of speaking their minds
- Alak - Illya is not especially fond of Alak, often feeling threatened by his oddly likable and flirtatious personality
- Aleksy - Definitely prefering Aleksy from the two twins, Illya has a somewhat friendly interaction with him; they sometimes talk but Aleksy's more reserved personality prevents them from being friends
- Aoi - Illya rarely meets with Aoi but when it happens, the two spend hours talking about everything; although not friends, Illya sees Aoi as a long forgotten relative he remembers he missed only when meeting him again
- Cain - Slightly afraid of Cain, Illya respects the man and knows when to stop messing around; he is grateful that Cain offered him a job, considering most people dislike necromancers
- Cecil - Illya views Cecil as a superior and nothing more; he knows not to cross bondaries and annoy a high arcane master
- Damien - Illya's respect for Damien's determination has turned into love; he looks up to her and considers himself lucky for finding such a wonderful woman to love him
- Elyon - Good friends; Elyon is one of the people Illya feels most comfortable being around; her knowledge about death and the way she treats spirits make Illya feel less alone in a world that mostly cares about the living
- Kara - Has a lot of fun bickering with Kara about the way they use their magic, being completely opposite of one another; sees Kara as a long-lost cousin he gets to see at family reunions and who could become his best friend in a matter of hours
- Kieren - Illya finds Kieren to be maybe a little too hyperactive, but at the same time he does enjoy Kieren's lively nature as well as his always positive thinking
- Klaus - Best friends for over a hundred years, Illya acts as the grounded one between the two, often keeping Klaus at bay from wrecking havoc; they bonded over their different ways of living; trusts him with his life
- Marshall - Illya likes to spend his Friday nights with Marshall, partying at some festival or concert; he's always amazed by Marshall's ability to find the most obcure parties and always likes the outcome when spending time with him
- Mina - Illya and Mina are more strangers than acquaintances, only meeting at the bar; they rarely talk and therefore Illya doesn't have much of an opinion about her
- Mollymawk - Illya sees Molly to be at an opposite end; he hardly enjoys Molly's desire to save lives, but he does somewhat admire his determination
- Nathan - Illya sees Nathan similar to himself, silent and guarded; they both use unconventional magic methods, which makes Illya feel more comfortable around him than around other warlocks
- Novalie - She reminds him of his younger self; sometimes gives her advice even if he knows Novalie doesn't need it; sees Novalie as a younger sister
- Selene - Although somewhat used to Selene's presence, Illya rarely interracts with her; he views her as too high-class for his liking
- Stephan - Illya and Stephan are acquaintances; Illya often questions Stephan's decision of being a familiar but is not close enough to him to ask for his true reasons
- Viola - Illya has gotten used to Viola's presence at his work place and quickly learnt how to avoid her constant wave of questions; is pretty neautral about her as long as she doesn't pry too much
- Yulya - Uncertain if Yulya's natural charm or her powers were the ones who pushed him to have a one night stand with her, Illya still respects Yulya, seeing her as one of the very few women who aren't afraind of speaking their minds