Wet Lab, silver-gelatin production still, oblique close-up on a black steel tray: a compact training-manual anatomical specimen has a concealed charcoal nerve threading from a redacted page into a small agent-skill cartridge. Two gloved hands lift the cartridge with clinical care. A real hexagonal honeycomb mesh supports the specimen. One concentrated phosphor-green #22c55e row of vial lights marks the contamination line; warm oxblood tissue, copper clips, gauze and deep near-black surround it. Numbered callouts identify 01 poisoned lesson, 02 persistence filament, and 03 revocation scar. An absurdly domestic tea strainer lies beside the tray. Small Bureau seal, slightly mis-struck, lower right; fine filing lines and plate number remain safely inside the frame. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.