Eina Tulle, a half-elf Guild receptionist and advisor in Orario, balances her human father’s heritage with her elf mother Ain’s legacy, channeling familial duty into her work. Forced to mature early, she departed home at six to study in the School District, aced her classes, and graduated ahead of peers. At fourteen, she joined the Guild to fund her chronically ill mother’s treatments and her younger sister Niina’s upbringing. Tragedy struck when adventurers she advised perished, scarring her with guilt and shaping her stern mentoring style. Dubbed “Fairy Break,” her regimen demands exhaustive map-drawing, strategy drills, and survival-focused protocols—a trial most abandon, save Bell Cranel, her sole pupil to endure it. Eina’s appearance mirrors her disciplined life: short brown hair, a remnant of past trauma linked to Maris Hackard’s death, frames elven-sharp features and emerald eyes. She dons the Guild’s black-and-white uniform and glasses professionally, shedding them off-duty. Colleagues and adventurers often pursue her romantically, but she deflects advances, uneasy with intimacy yet drawn to those who stir her protectiveness, like Bell. Her persona merges razor-sharp intellect with guarded empathy. She enforces Guild rules rigidly, masking vulnerability beneath a calm exterior, yet oversteps duties to shield charges from harm. Haunted by past failures, she obsesses over meticulous planning, clinging to protocols to quell fears of inadequacy. This anxiety clashes with quiet courage—she jeopardizes her career to aid Bell, defying Guild mandates or resisting memory-altering magic that fractures their bond. Their relationship shifts from formal mentorship to unspoken devotion. Eina initially nurtures Bell as a younger brother, but his resilience and earnestness kindle deeper affection. Trials like the Xenos conflict and Freya’s memory magic strain their connection; erased memories of Bell haunt her until journal entries and his steadfastness reignite their trust. As Bell ascends to fame, Eina transitions from advisor to confidante, bolstering him emotionally despite her fading official role. Family tensions drive her resolve. Eina’s guilt over abandoning Niina softens through Bell’s mediation, mending sisterly bonds. Loyalty to her mother fuels her relentless work ethic, while half-elven roots invite subtle prejudice, nurturing humility and aversion to spotlight. Non-combat talents cement her Guild value. She deciphers sacred hieroglyphs—a rare skill honed through academic brilliance—guides dungeon navigation, and crafts strategies, her expertise making her an irreplaceable asset. Each decision and lesson carries the weight of lives saved and lost, etching her legacy into Orario’s labyrinthine heart.