Board Thread:General Discussion/@comment-31283382-20140611172614/@comment-31283382-20140614180146

3. Asauchi is an "empty" blade that needs to be filled with a zanpakuto spirit, it is NOT a zanpakuto spirit. Asauchi is a "faceless" spirit with no appearance or personality; only by Death God imprinting his soul upon it, does one become a true Soul Slayer.