Night of the Soulless Unholy RAW novel

Called soulless blasphemers, the persecuted untouchables, the Herald Clan.
They travel across the continent to collect the emperor’s gold coins in order to escape the inherited curse.
Azadin was born with the worst curse among them.
Lacking magical talents, he becomes a low-ranking messenger with the abilities handed down to him by his elders, and travels around the continent in exchange for gold coins in exchange for granting the petitioner’s wishes.
At that moment, a magic book appears in the world that will release the clan’s wishes, and a huge conspiracy that has been hidden with the rebellion of his twin sister Arael is slowly revealed.

How will the blasphemous Azadin resist the coming destruction?