Zero has the special ability of being able to read books but what are the other methods for getting lots of charm? --- "You have your invincible spell!" Kerberos - Card Captor Sakura, El Nido Bow Master
I've never played a Zero(nor am I aware of how much you receive from the book and/or limited by accessibility), but here are some methods I used in the past may help you get charm:
-Farm Zakum Helmets. Equip and fuse them after wearing by becoming an alchemist. -Whenever Nexon gives out free nx or has the weekly wardrobe stuff(They sometimes give charm out). -Wearing Monster Park Mustaches.
Do rank mode Dojo. Every 5 stages you get 5 thingies. Keep doing the first 5 stages over and over until you get enough. Trade them in for the yellow belt. Each yellow belt gives 100 charm. --- http://i656.photobucket.com/albums/uu285/slg369/Hyaku-Shiki.gif
Nah, this one is a bit too difficult unless you have anti troll potentials on your gears. (and they cannot be obtained through cubing)
Now I feel rather silly for throwing away some of the charm envelopes that came out of the Red ice cubes in the previous event.. --- "You have your invincible spell!" Kerberos - Card Captor Sakura, El Nido Bow Master