User blog comment:DeathGodPrayer/Talk About What You Want!/@comment-24098614-20140211211301/@comment-1359322-20140212085802

Can't tell for sure cause this isn't bleach, Astaroth, but if a Sacred Gear user does face the situation you said, then it'll depend on the user, the SG won't leave the possessor, but the possessor might no longer be in a form to use his/her SG. Well either way, that probably won't happen, if not Cao Cao wouldn't be able to return to battle.