Talk:"En Garde! Ghost Agents Do Battle! ~ 8 ~"/@comment-116.12.243.194-20131007022820/@comment-16083497-20131007032141

Soul Gem. It is an event where you progress through the story mode, and acquire gems along the way. After you completed a certain number of sets (each sets has 6 gems) you will be rewarded randomly (except for 10,40,70,100 as there are reward daemons)