Five years passed since the death of the Apostles and the Sin Demons.
Peace prevailed in Fantasia within those five years. Since the invaders were severely weakened, no more breakouts were happening. This meant that nothing was stopping Humanity from progressing at a very rapid pace.
Humanity's territory expanded greatly, and the Last Bastion itself became bigger through Ashton's lead. Additionally, there were artificial islands in the sky powered by ARC Cores that expanded the territory even further.
A lot of Ashton's plans to improve society were now in effect. Public knowledge of cultivation has been established and almost everybody in the younger generation is cultivating now, greatly strengthening Humanity's longevity.