"We agreed that after we reclaim the territory in the marsh world, you'd receive half of the harvested resources from the next decade. Now, we can increase that time to 30 years. But, there is a prerequisite. If we encounter any problems in the marsh world from now on, Tower Canon will have to help us unconditionally.
"If you agree, we can carry on working together. Otherwise, we can part ways now. This is our base limit. If you can't accept it, you can leave now!"
The God of Fools and Mirror God could not be bothered to continue negotiating with the greedy Fourth Page Instant Extinguishment. It would be better to make a clean-cut decision now.