Lycia Mercedes is the archer and scout of Lightning Bite, a C-rank Seeker party undertaking perilous missions. Her expertise in long-range bow combat and intelligence gathering makes her vital for reconnaissance. Slender and graceful, she possesses long blonde hair often in two ponytails, emerald eyes, and a face suggesting quick wit. Her practical, light armor—a sleeveless blouse and leather breastplate—prioritizes mobility for her agile, ranged combat role.

Confident, playful, and cheeky, Lycia often teases others with sharp wit. This mischievousness coexists with serious dedication to her Seeker duties and loyalty to Lightning Bite. She approaches negotiations and ambitions assertively, balanced by strong camaraderie and protectiveness towards comrades. Her interactions with Alma Judikhali reveal a supportive, mentor-like relationship built on mutual respect and shared experiences as female Seekers; Lycia encourages Alma through advice and lighthearted banter, contrasting her outgoing nature with Alma's reserve.

Lycia's involvement with Noel Stollen begins when he seeks to recruit her for his clan-building ambitions. Initially cautious and focused on Lightning Bite, she prioritizes existing loyalties. She gradually collaborates with Noel’s group during joint missions, navigating the competitive Seeker environment while weighing her party’s interests against broader opportunities. This engagement contributes to her growth, though her primary allegiance remains with Lightning Bite.