User blog comment:B214/Volume 21 info & spoilers/@comment-27083298-20160308001905/@comment-104.7.80.176-20160311002019

From the sound of her words in the preview seems to me her soul is gonna be sealed in the boosted gear. If that does happen then maybe fafnir's soul will merge with asia's twilight healing giving her turning a powerhouse with more wizarding and supportive powers since she has been learning more magic with rias, akeno, and rossweisse (that would explain why we saw her in that armorial on the cover of vol 20). Please give me your comments and opinions on these theories.