The Demon King's Army's Baptism

After inexplicably transmigrating to another world shaped like a round heaven over a square earth, with five supercontinents, Anjie and her three companions are hailed as heroes by its people. In the fifteenth year after their transmigration, they finally set out for the Demon King's stronghold with their adventuring companions, ready for the ultimate battle to defeat the Demon King. But when the Demon King summons a new army, the newcomers' arrival makes the four heroes switch sides on the spot. Together with the demon army, they set off a wave of change across the other world...