The Beta Heavenly World, which was contained inside the White Sun, was quiet and peaceful. The reason was that every type of sentient life form was put in a dream from which they could not wake up.
The world contained members of the Heavenly race and the few individuals of the Magi Invader Force that were left behind. There was no Rank 0 life form inside the world as they all perished due to the collateral damage produced by the fight between Zatiel and the Archangel's incarnation.
Silence reigned in the Beta Heavenly World after Zatiel left, but today it was broken as a portal opened in the sky, and a group of people came out of it.