Demon is the evil that threatens the existance of Earth and the Digital World. He takes over the castle that was home to the gods of the DW. Only digimon can enter but if a human has the 5 VTamer tags then a human can enter. *incidently the Alias 3 have cards that they can use in a 'slot face' of Demon* Demon created a super ultimate egg which housed Arkadimon. He had Etemonkey try and stop Taichi (and had Pico Devimon spy on Etemonkey to make sure he was doing his job properly) When the egg hatched he had Neo raise it for him but with an ulterier motive at the end to get rid of Neo but Neo takes total control of Arkadimon and has it delete Demon and absorb his data. Demon lays in wait inside of Arka and when Arka is defeated he arises again as Demon Super Ultimate.
XROS WARS (Young Hunters)