User blog comment:FairyRaven/Fairy Tail Chapter 453: A Father's Job, Review and Commentary/@comment-109.69.5.239-20150920151502/@comment-87.165.103.22-20150921092304

I dont exactly think zeref thinks the one magic is darkness. he pretty much already confirms it is love! y'know, he has pretty much the only op magic in the world with the ability to kill everyone instantly ... that is everyone he loves.