"In this world, weapons are classified into four tiers. Like I've said, most of the weapons in the world are at the lowest level. Even those wonderful weapons which are rumored that they can s***h iron as easily as chopping mud are merely the best among the least powerful ones. Those are ordinary works unable to withstand the injection of strong internal qi, so they are just ordinary ones. The tier superior to the ordinary tier is called Spiritual Tier. Spiritual-tier weapons, aside from being exceedingly sharp, are highly resilient and conductive, which can not only bear the injection of the internal qi of a peerless master in the Natural Realm but also double its power. Yet, Spiritual-tier weapons can't take the injection of Celestial Beings' internal qi, so there is a higher tier called
