User blog comment:TheCarrotSaysYumYum/FT0 - Game of Truth, Review./@comment-18654001-20140817192058/@comment-4449950-20140818005157

That's... actually really neat :D I hope the Tenrou Jade is important and isn't just a factor to have the characters meet, so having it be Lumen is pretty cool.

However, on this note I'm also a little hesitant, because I doubt Mashima would reveal Lumen in FT0 before FT, because he wouldn't want such a major mystery of FT to be spoiled in a series outside of FT XD Maybe this means Lumen will appear in FT soon? o__O