Board Thread:General Discussion/@comment-4698889-20170224092621/@comment-4698889-20170326085800

Edited for clarity. Thanks, anon. Judging from the title, it's probably going to involve Allen again.

Someone on the Discord server brought this up; each of the Ending boys accompanies a master instead of being a master themselves. Allen being Master of the Heavenly Yard disrupts this theory, which leads me to believe that the holder of the title is in fact Riliane.