Cinnamon Roll
A character that is very kind and sweet but faces more hardship and suffering than they truly deserve. Comes from the usage of an article headline from 'The Onion' titled 'Beautiful Cinnamon Roll Too Good For This World, Too Pure.' to describe a person or character that is very good but faces a lot of pain in their life.
https://www.urbandictionary.com/define.php?term=Cinnamon%20Roll