The year is 2025
When Alcesto and his friends returned Earth, they were questioned by the authorities. Japan, Korea, China, USA and almost all the other big countries were involved in this process. Without telling them about important details like 'the way of Gi' Alcesto managed to create a made up story and make them believe it.
"We fought against a hellish god with an army of demons."
That's how countless of S rank slayers were killed in the action. The authorities didn't disturbed them much as they realized that these four were the saviour of humanity. They even wanted to reward them, however, Alcesto declined their offer humbly.
Alcesto and his friends succeeded in slaying the evil demi God Navertozwein. During this deadly journey of theirs, some of their friends perished. However, before they could slay him, he had already slayed the heavens along with the God.