The heck? :\ There's such thing as that? Why would they do that? Not only Nutaku Gold has timer as well but FGs as well? I cannot compute this.
Yeah there is. 180 days since purchase. At least FG that drop in game don't have that timer. Which is actually better than X-Overd where even Crystals you get in game have that 180 days timer on them. So you can't collect them to do a huge splurge on a gacha you like.