I'm a Demonic Cultivator, Laying Low at the End of the World and Desperately Stocking Up

I’m just saying, hypothetically, if I were a demonic cultivator with a Soul-Refining Banner who entered a zombie world and slaughtered zombies until the skies darkened and rivers of blood flowed, achieving great mastery in demonic arts, only for heavenly merit to descend into my body, would I count as a demonic cultivator or a righteous one? I’m a little undercover agent sent by the righteous sects. Will I be hunted down as an unrivaled demon in the future, or will they put me on a pedestal and worship me as a saint? Waiting for an answer. Kind of urgent...