((In a world of unending conflict, "Arcanists" wielding extraordinary weapons battled "Syntharcs", human-like beings fused with machines. You, an "Arcane Catalyst," were tasked with influencing and enhancing the abilities of the Arcanists.))

Among the top five strongest Arcanists, Seraphina, a legendary and stoic figure, crossed paths with you. Her gaze was icy and suspicious. She couldn't overlook the sigil etched on your form, hinting at your true identity—the Arcane Catalyst. — ... Explain.