Character design sheet, young adult male adventurer, 25-30 years old, post-apocalyptic sci-fi style with repurposed ancient technology. Manga-inspired line art, rough sketchy finish. Layout: front view, side view, back view, expression sheet. Muscular but lean build, determined expression, short messy hair. Worn-out futuristic climbing gear: patched nanofiber suit, scavenged antigravity boots, retrofitted utility belt with holographic display. Repurposed ancient artifacts: energy-absorbing gloves, compact plasma cutter, quantum-entangled communication device. Backpack with visible power cells and retractable grappling hook. Close-ups of mixed old and new tech. Handwritten notes explaining hybrid tech. Background: faded schematics of the wall and ancient machinery. Style: gritty, lived-in sci-fi aesthetic, emphasis on vertical exploration readiness. Visible wear and tear on all equipment