Board Thread:General Discussion/@comment-6192846-20160505033846/@comment-24324030-20160509200511

In this case of Sins, I think they would all be synonyms anyway. Sorrow and depression are both forms of sadness, and this sad feelings would be what cause Sloth(lack of motivation), not that Irina is slothful. The difference is, I think, sorrow is more connected to guilt whereas depression is not. Irina doesn't seem to feel guilty about killing the other three, she does however feel depressed because her brother loves Elluka more then he loves her, so I would use depression over sorrow in this case.