Rocky and the battle with Fury City had merely come to a pause, far from over, at least in Rocky's view.
That's why, after the initial victory, he not only continued to push Thunderhawk City closer to Fury City but also invited Howling Sky, hoping to purchase warships from him!
Even though he won the first battle, Rocky was not arrogant, nor did he believe himself to be invincible. On the contrary, he was fully aware of why he had won—the advantage of Rune Technology on one hand, and the opponent's underestimation on the other.
Since Rocky kept his Rune Technology heavily guarded, the outside world, even if aware of his possession of top-tier technology like Mana Runes, was still unclear to what extent he had developed this technology. It was for this reason that he was able to severely defeat Fury City in the previous fights. However, now that the battle had been won, the strength he possessed was also exposed. Continuing to win would not be as easy.