In Book 3 Ruggie invokes the incident with “King’s Roar” to convince Leona to let the prefect and Grim sleep in his room, saying, “I still ain’t fully healed up from the interdorm Spelldrive tournament, y’know? I dunno if it was that major magic I chugged a whole potion to use or what, but hard work’s been wearin’ me down more than ever lately. So I’m thinkin’ I’d heal a whole lot faster if I had these guys waiting on you for a while!”
Leona concedes, and Ruggie seems delighted by the opportunity to “coast down easy street for three whole days,” so it is a little unclear how much he was still suffering from the effects of everything he survived in Book 2 at the time.
Despite the power imbalance between the two characters Ruggie does not hesitate to speak rudely of Leona, both to his face and behind his back. He says Leona’s actions during Fairy Gala make him “embarrassed to be part of Savanaclaw”, praises Kalim for his diligence and motivation setting him apart from Leona and laughs outright at how “cute” Leona looks in Malleus’ ceremonial robes.
When Leona describes himself as “practically a commoner” for being second in line for succession Ruggie counters by reminding Leona of the time he mistook Ruggie’s home for a doghouse, saying, “I wish my perspective was so warped from a life of luxury.”
Ruggie also teases Leona about Cheka, tells Leona that he is a “pampered prince” who cannot tie his own shoes, dismisses Kalim’s praise of Leona’s Fairy Gala performance, teases Leona about ditching classes and tell Leona to keep his mouth shut at a school assembly.
During Halloween Ruggie tries to escape a group of visitors by sending them after Leona instead, but Leona catches on to his ploy and leaves Ruggie to handle the visitors—and Kalim—by himself in preemptive self-defense.
Twisted Wonderland Reference Note 