User blog comment:Miskos3/Fairy Tail Chapter 508: Pleasure and Pain, Review/@comment-30338537-20161031174103

Wasn't "Love" the One Magic? Then Rakheid is the counter to the One Magic!

Just a thought: maybe Kyouka is Rakheid's mother. Zeref would certainly see her as a tool, thus protecting her from the Curse and she also manipulates sensations in a certain way. That romance would be FT's version of a manager banging hs secretary.