Ever since he arrived at Moldavia, Joshua had never restrained Suralno.
In nominal terms, the blue dragon was his prisoner. However, the warrior regarded him as an employee whom he picked up and brought back from the battlefield. The warrior did not even interview Suralno to decide if he was worthy or not to be 'hired'. Joshua was not afraid that Sulrano might want to retaliate because Joshua had bashed him up pretty badly in the battlefield. The warrior knew that the blue dragon did not have the guts to do it.