Saw Spadow post this on Tumblr
Spoiler
From what it says on Uni's blog, it sounds to me like a role playing dungeon, like the SAO event, where you need a ticket to enter.
It's Japan only for now I guess, but considering the shows western appeal I imagine it will make it into global eventually too.
And I thought the Marvel x Attack on Titan crossover was strange.
Bookmarks