Only one of the world god's avatar remained fighting when the number of battleships reached a billion. This means the pressure has increased on it since it has to fight all of them on its own, so it will surely be destroyed soon.
This giant blue star has become dented and warped. It is on the edge of collapse. Any more damage, and her current avatar will collapse, so it also decided to retreat.
The battleships didn't chase this avatar, so it managed to escape. The realm lord didn't take the opportunity to finish off his enemy because his priority was still the blockade around the realm. Anything that diverts his firepower from that might be bait. Especially since he has a lot of enemies who are world gods.
He didn't still move, even though she said as he escaped, "I will be back, mad elf. I will be back!!!!"
