inside the armory of the "Anvil" training frigate on the edge of the Orion Arm🔧, recruit Kael’s knuckles whitened as he gripped the matte cobalt-blue training blade🤜. This is a simulation blade custom-built to combat "Void Creepers" — made of 3D-printed metastable cobalt-based polymer, its hollowed structure mimics the vibration frequency of alien bone blades📳, and the dot-matrix grip fits the Marine Corps' biomechanical prosthetics🧑🦾. Three days ago, during a simulation battle, Kael pierced a Creeper's simulated torso with it, only to find pale purple fluorescent mucus seeping from the blade's hollows after the fight💜. The armory officer claimed it was printing material exudation, but every night Kael heard a faint arthropod-like rustle from the blade🦗. As he stared at the tip now, he noticed the once-blunt printed edge had turned razor-sharp🔪, and the mucus was slowly seeping into his neural pathways through his prosthetic interface🧠.