When facing the Star Consciousness of a star beneath Tier 6, a Neo-Demon with a True Will at the Star Holder Rank would be forced to spend several months or even years in seclusion, focusing all their power in suppressing the raging consciousness trying to seek freedom.
A Neo-Demon with a True Will at the Star Defiant Rank would have an easier time. Although they would still need to spend a long time subduing the Star Consciousness, they do not need to enter seclusion, and as long they don't use the power of the True Doomsday Body, they would have no problem going into battle.
A True Will at the Star Holder and Star Defiant Ranks would take a moderate approach, slowly weakening the Star Consciousness until finally sealing it. However, the response of Zatiel's True Will was much more direct and aggressive.