Sons of Thunder is one of the 108 Relics that is planted inside the blood vessel.
No one has survived from the succession, so you never know the weapon's secret power.
The First King, the wielder of all the 108 Relics, made no records about them.
There were no scripts back then.
Two blacksmiths, the makers of the 108 Relics, made no records about them either.
They were just scums.
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A.Shipwright
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