Among the Great 108 Relics, there's an armor called the Unborn Shell.
The armor makes metal scratching-shattering noise which made the wearers shed blood out of his ear every time he moves.
With solidity comparable to dragon scale, the structure of repeating destruction and regeneration allowed flexible movements.
Unfortunately, the blacksmith was interrupted by the distract-dragon in his right eye while making the armor, and the head part was never made for good.
So the successors of the jealous armor were never found with head fine and unscathed.
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A.Shipwright
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