If anime has taught me anything, its that you should be wary of cherry blossoms...
Here's an interesting one...Oeilvert might be a reference to FFTactics as well. Course non-Japanese players will never notice because it involved a mini-game that was removed from US/PAL versions of the game. I don't even think WotL has it. Apparently some of the Treasures you collected started a mini-game that plays like a "choose your own adventure" style story book. One of the items, Veil of Wiyu tells the story of a woman named Oeilvert, who watches over an amnesiac writer named Pablo, she is tasked with killing him cause she knows the truth of his past, but she postpones it, in hopes of learning information about Pablo's former friend, Edgar Black.