Keep Defending
As for the time when the ten worlds' doors would be opened, things would go hectic at all fronts.
That was something I was sure about. The losses of the enemy at these two worlds would drive them insane! So they'd try everything they got, they'd aim to stop me from reaching the twenty worlds.
But no matter how hard they tried, I planned to crush everything they'd throw at my way. And that was also part of the reason why I asked Lily and others to stay defensive.
If they kept defending for so long, the enemy would grow used to this. They'd think my forces weren't able to attack, and wouldn't place so much importance on these worlds.
I wanted them to make that mistake. At the moment they'd lose their grip here, I'd flip the switch, move my forces towards an all out offence and clear all the portals leading to these worlds.