Wars in the Middle Ages moved at a slow pace. After Harano caused quite a bit of trouble toward the Ise Peninsula, as expected, the Saito family's main force still hadn't shown up. The ones stirring up trouble at the border were still just Igi Seibei and Ozawa Masahide.
These two had increased their forces a bit, but not by much; they still didn't have the power to drive the Wanjin army back in one stroke. Instead, as the Wanjin army grew more familiar with the surrounding areas, even their small raiding squads found it more and more difficult to cross the river and harass.
The Saito family never fully mobilized, which was honestly a little strange.
Maybe Saito Ryuko was just an idiot?
Or maybe, after the Saito family had fought Oda Nobunaga so many times in the field, the "Six Minoh Elders" were reduced to "Three Minoh Elders," and now they'd grown timid and didn't dare enter Owari territory to fight Oda Nobunaga?