Kain Darkwater was an orphan on a deep sea mining operation on the outskirts of UEE space. Hoping for a better life he stowed away on a freighter and got stranded on Cestulus. He then joined a small gang pirating among the cargo ships that passed through. His best friend was Bi'ir, an exiled Banu, and only person he considered family. Through many capers Kain earned his nickname "Solid" for being a dependable teammate.
His life changed when rival pirates with a stolen Banu Merchantman passed nearby fencing it's wares. After sneaking on the vessel they discovered it was Bi'ir's family ship and they all had been killed. A fight ensued. Solid was the lone survivor. He piloted the huge ship alone into Banu space to return it, only to find out Bi'ir was the last of his lineage. He was gifted the ship for returning some particularly valuable cargo and for being Bi'ir's "family". He named it "The Diligent"
Kain "Solid" Darkwater is now a free space trader looking to make a living traveling among the stars.