Eucliwood Hellscythe, known as Eu, is a necromancer from the Underworld bound by silver armor and a forehead plate to restrain her reality-altering powers. Even casual speech or thoughts risk catastrophic consequences, from instant death commands to existential distortions. Her striking silver hair cascades past her waist, framing blue eyes and a wardrobe blending medieval armor with a violet dress. She communicates through handwritten notes to avoid accidental harm, masking a compassionate nature beneath a stoic demeanor. Activating her abilities inflicts excruciating pain, a self-imposed punishment rooted in guilt over past accidental killings that branded her a monster. Her life intertwines with Ayumu Aikawa, a zombie she resurrected after his murder. Their bond deepens into mutual dependence, with Ayumu’s emotional support helping her confront self-loathing. Formerly of the Underworld’s Seventh Abyss, her suppression gear was forged by Naegleria Nebiros. Relocating to Tokyo, she encounters Ayumu, reviving him and later sharing his home. Adversaries test her resolve: the King of the Night, a fallen comrade craving death by her voice, and Kyoko, whose provocations force Eu to endure agony wielding her powers. Post-conflict, she vows eternal companionship with Ayumu. By the light novel’s end, stripped of necromancy, she discards her armor, embracing a tranquil NEET existence. Workplace rumors hint at marriage, though the conclusion remains open. Her Continental-tier powers span resurrection, healing, immortality bestowal, reality warping, and energy-absorbing shields. Notable acts include reviving Ayumu, erasing threats via speech, and unintentionally altering global attire. Vulnerabilities lie in her reliance on written words and suppressed emotions, prioritizing others’ safety above her own. Interactions reveal complexity: a slap for Haruna’s flippant attitude toward death, forgiveness for foes like Seraphim. Her arc traces self-acceptance, healing through connection, and reclaiming normalcy after relinquishing godlike might—a journey balancing destructive potential with redemption and quiet resilience.