I'm in chapter 12 in Yakuza 3 and am trying to access the hidden menu options in restaurants and bars. However while I may have once seen the magazine necessary to unlock these items I seem to be unable to find the magazine at any of the M stores I've visited.
All I can find online is that I should be able to purchase it, but all I seem are two magazines that don't seem to help. I've checked the items in storage and there's nothing there that I can see.
Is the purchase of this time sensitive, or can I still find it somewhere else?