The poisonous ambush that Sophia had prepared for the mother brains and Insect queens was extremely effective and wiped out almost 70 percent of them. Only a few who had strong poison resistance or had a special type of body were able to survive this ambush. This was definitely a major loss for the Nest of All Chaos danger zone.
The way how the Nest of All Chaos managed to create such a large number of bugs and were able to quickly replenish their forces was through these mother brains and insect queens. In the times of need, these special bugs were able to quickly give birth to a huge amount of offspring who could be used as cannon fodders in the battles.
So after these insects got killed, the Nest of All Chaos would not be able to replenish their forces as quickly. They still had a huge number of insects to use for the battle. But if Rein and others were able to quickly kill the insects, then the will of All Chaos would start to feel the pressure with most of its insect generating beings gone.
...
Just when Sophia performed this surprised attack, Rein, Hana and all the other waiting monsters also launched a sudden attack on the insects who were petrolling outside the borders of the Danger Zone.
Most of the insects were inside the danger zones but the amount came out to petrol the area was not a small number either. So killing all of them would definitely be useful. And as they were not inside the area of influence of the danger zone, killing them here was much easier.
So when Rein and his team attacked, they attacked in full force. Hana covered a large area in her eternal fire and scorched all the insects to ash. Rein used high fire and ice to froze and burn a huge amount of them too. The other monsters that Rein and Hana had brought with them also killed many.
After seeing that the taunt tactic had very limited success, Rein decided to not waste any more of his time with this. Instead he decided to immediately invade the danger zone as giving more time to the will of All Chaos was equivalent to making their invasion more dangerous.
Rein decided to invade the danger zone from three sides. Rein and Hana would be leading the main force and the two slightly smaller units would be handled by Sophia and the Caretaker kun. That was not all. The remaining side from where Rein's army was not attacking, Ruby was leading a small team of elites to suddenly invade from that side when the battle had progressed a little bit.
One of the mother brains that Sophia had not managed to destroy was located close to that area. This particular mother brain was capable of giving birth to a very troublesome species of bug that was capable of exploding on death. And it was also very troublesome when it was alive. So killing this particular mother brain would be very useful. That was exactly what Ruby's mission was.
So with all the plans set, the invasion finally started. Rein and Hana were the first ones to enter and they destroyed everything on their way. Not only the bugs that got on their way, they even made sure to thoroughly destroy the terrain of the danger zone.
A little bit after Rein and Hana, Sophia also started her invasion. As she was most familiar with the area, she led her team through the most direct root and started targeting the stronger bugs. With her shadow powers, many powerful bugs that were the trump cards of the All Chaos danger zone fell in her hands.
Almost as soon as Sophia started her invasion, Caretaker kun also started his own. His once again displayed his amazing efficiency in killing these bugs and a huge amount of insects died in his hands. While Rein and Hana did wanton destruction and Sophia silently got rid of the powerful bug monsters, Caretaker kun allowed his inner rage of losing his home to take over and rampaged around. He also started to destroy everything that was in his way because he wanted these bugs to know how it felt when someone's home was destroyed before their very eyes.
So it looked like the invasion was going well for Rein and his team. But would they be able to stay in this advantageous position throughout the whole battle. Only time would tell that.