Heh! My friend read manga way it comes in Finland and were on volume 53! She's so going to be spoiled by this because she always wants to see Akuma No Mis first time in manga.
About the opening… Change the song! That was terrible :(
Again, bullshit. Why your dumb friend does not read the scans? It's not like shes forced to watch the anime right? THERE ARE NO SPOILS AS LONG THAT YOU READ THE MANGA. Anime is a derived product from manga; animators dont give a shit to people who dont read the manga. There are not spoils from anime, put this in your brain.