Ireena Litz de Olhyde descends from a hidden royal lineage, the Laville family, true rulers of the Laville Empire. Her family concealed their identity under the surname "Olhyde," branded traitors in history due to their descent from the champion Lydia Beginsgate and an Evil God. This heritage forced them into secluded countryside living.
Significant loneliness marked Ireena's early childhood, with Rosa as her sole friend. Ard Meteor's rescue from monsters attacking her village transformed her demeanor from withdrawn to cheerful and lively, sparking their close friendship and mutual enrollment at the Laville National Academy of Magic.
Ireena embodies a strong sense of justice, optimism, and a tomboyish spirit. She proactively seeks friendships regardless of initial attitudes and fiercely opposes bullying, exemplified by her defense of Ginny Fin de Salvan against the noble Elrado. Despite her outgoing nature, she struggles with romantic vulnerability, finding it difficult to express her feelings for Ard openly. Initially unfamiliar with polygamy, she vehemently opposed the concept of a harem for Ard. Her interactions reveal a tsundere side—outwardly headstrong yet privately affectionate toward him—and she develops a rivalry with Ginny for his affections.
Physically, Ireena is an elf with white hip-length hair (often in low pigtails), blue eyes, and pointed ears. She typically wears the academy's white-and-blue uniform with black stockings. While journeying 3,000 years into the past, she wore a white dress, hooded cloak, and uncovered high heels. Her resemblance to her ancestor Lydia Beginsgate is frequently noted.
Key developments include her role in forming a trio with Ard and Ginny after rescuing Ginny. Later kidnapped by the dragon Elzard for sacrifice in an Evil God summoning ritual, she was rescued by Ard, highlighting her recurring damsel role. She traveled back in time with Ard and Ginny to stop antagonist Disaster Rogue from altering history to save Lydia. Confronting her ancestral legacy during this arc, Ireena expressed disapproval of Lydia's morally questionable actions despite their blood relation. Across these events, she evolved from Ard's childhood friend into a central figure thwarting world-threatening conspiracies.
Ard forms her emotional anchor; she is his first friend and eventual wife, confirmed in light novel continuity where they have a daughter, Ellis Meteor. She maintains a competitive dynamic with Ginny over their contrasting romantic views—Ginny advocates a harem while Ireena desires exclusivity. She also developed a sisterly bond with Sylphy Marheaven, treating her with protective sternness. Confronting Lydia forced her to reconcile with her ancestor's legacy and the weight of her royal bloodline.