"Is there something in this world that they need? They've sent Dimensional Beasts into this world time and again, yet none of the available data shows anything special. Only the locations where they appeared differed. There were no signs of them searching for anything, either. It seemed more like they were repeatedly confirming this world's coordinates, gathering intelligence on it, gradually wearing down its strength, and instilling fear in it."
"This pattern of repeated operations remained unchanged for the two years before we arrived in this world, so they definitely weren't searching for anything. The more important something was, the less likely they would drag things out like this. Two years was more than enough. Once they had confirmed this world's coordinates, if they still couldn't find what they wanted after repeated attempts, they should have sent more forces directly into this world long ago, just like when more than thirty dimensional passages appeared at once."
"So this was probably a straightforward invasion. Perhaps they hadn't initially intended to accelerate the Dimensional Beast invasion to its current pace, but our appearance disrupted their plans. We made them feel threatened, forcing them to speed things up."
"Looking at it from another angle, what if dimensional passages weren't actually that safe or stable? Every time they sent Dimensional Beasts through, they suffered varying losses. The initial losses would have been severe, and the opened dimensional passages would have been relatively narrow, unable to accommodate too many Dimensional Beasts. After all, this was an entirely new world. The connection between the two worlds wasn't stable, and opening a passage wasn't the same as simply jumping through space. The requirements for stability would naturally be much higher."
"So the main purpose of repeatedly sending Dimensional Beasts over was to scout the way, to find