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If it really doesn't work, then try using that spiritual object to attempt breaking through to the Five Viscera Realm.
The Five Viscera Realm is different from Tendon Changing and Bone Tempering. At this realm, all spiritual objects and medicinal materials become completely auxiliary and are no longer key. There are also no thresholds such as Tendon Changing Pills or Bone Tempering Pills, and what determines whether a martial artist can cross this barrier has more to do with the martial artist himself.
Speaking of which, the gap in the Yu Family is quite severe; the individuals from the second and third generations couldn't break through the Five Viscera Mysterious Pass even with the aid of external objects.
