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The "security check program" of the Reincarnation Blade Fairy was mainly created to guard against the Fourth Heavenly Dao—after all, the Fourth Heavenly Dao sneakily endowed the Fifth Heavenly Dao with a possessing curse while her main body, the Fifth Heavenly Dao, was proving its Dao and becoming immortal.
This was something one could not fail to guard against.
Therefore, after the Fifth Heavenly Dao had forged the Dao Artifact•Reincarnation Blade, it included the function of detecting "Heavenly Dao Immortal Information" related to the Fourth Heavenly Dao.
Now, when she swept her "security check" over Tyrannical Song, alarms blared out loudly!
And the alarm was extremely piercing—which indicated that on top of having the Fourth Heavenly Dao immortal information, Tyrannical Song seemed to have even more on him!