Jack calls Leona “lazy” and “irritable,” laughing out loud when Leona tells him about his responsibility of teaching rules, best practices and etiquette to others back home. When it is revealed that Leona did not get into any trouble with Azul over study guides Jack says, “I figured you’d go for the easiest out of you could get, Leona… Ah, no offense, of course.”
Jack also compliments Riddle by comparing him favorably to Leona, calling Leona a coward and saying Riddle “isn’t scared of puttin’ in some effort to get ahead. Again, unlike you-know-who.”
Ruggie mocks Leona regularly, buying cat food for Lucius while saying “I just thought maybe it’d be a good present for you,” saying he is ashamed to be in the same dorm as Leona during Fairy Gala, and downplaying Leona’s efforts during the event.
Ruggie also calls Leona a “silver-spoon” type, a pampered prince unable to tie his own shoes, and says Kalim’s diligence and motivation is what sets him apart from Leona.
Azul calls Leona “a lazy lion at heart” who doesn’t believe in sticking his neck out for others, while Jade mocks him during the NBC event with, “it’s almost as though you’re some sort of highborn prince.”
Floyd tells Leona he would do better bait during Spectral Soiree due to how he never does anything, and when Leona asks if he acts similar to the ghost-possessed Idia Floyd responds, “He’s like your clone.”
Kalim is indirectly rude to Leona during Fairy Gala, announcing before their performance, “We’ll give this everything we have so it won’t matter if Leona messes up!,” while Jamil’s insults are more overt: he says, “I question if the two of us are good enough to cover how bad Leona is” prior to their performance and afterwards tells him, “Nobody would guess you just barely learned how to walk properly on two legs.”
At the conclusion of the event Leona asks, “Is that how you talk about someone who saved your tails?,” and Jamil responds, “Are you sure that wasn’t just you doing your normal thing?”
Jamil insults Leona repeatedly during Book 6, saying that their failed passcode of “dour lion” was “so spot on” (Leona: “Everyone’s a comedian, huh?”), and teasing him about Vil and Idia mocking him for playing a video game popular with housecats.
When Sally compliments Leona for being well-mannered Jamil replies, “Are we talking about the same person?”
Idia describes Leona as “as docile as an angry lawnmower.” At the end of Leona’s dream of Book 7 he quietly says, “Now I’m genuinely curious what kind of upbringing it would take for someone to grow up that arrogant,” in reference to Leona, and says to his face later on that maybe he should act his age: “ever thought of that? Spare us the spoiled second prince act during a genuine emergency.”
When Idia comes across Leona in the woods behind the school he whispers to himself about how Leona is “just skipping out” on his dorm duties, saying he hates Savanaclaw students for being “just a bunch of hooligans.”
Malleus suggests Leona be “laid out in the sun to dry, along with (his) books” at the start of the NBC event.
During some back-and-forth with Leona he says, “Wild beasts certainly like the sound of their own howling” and talks about smoothing down Leona’s ears and removing his claws.
In addition to insulting Leona so badly in Book 2 that Leona overblots, when Lilia hears about Leona teaching “best practices” for guarding king and country to others, Lilia laughs aloud.
Grim is often insulting Leona, mocking him during Fairy Gala, calling him “a putz who’s already gotten held back a year” while Leona is actively helping him craft a potion and saying, “You ain’t gonna get anywhere tryin’ to put Leona in the same sentence as ‘proper’ or ‘gentleman,’ myahaha,” while right in front of him.
Grim tells Leona he is “the LAST person (he)’d ask” to teach things like rules and etiquette, and calls him “the most useless” member of the Cloudcalling tournament group.
Twisted Wonderland Reference Note 