I chuckled when I read this, bless you. Lol it's kind if difficult to explain. It's basically someone who's 'kind and sweet' (according to urban dictionary xD). For example: 'looks like a cinnamon roll but could actually kill you' is someone who looks like a good, kind type of person to others, but over time you learn that they're not really like that (dammit I can't explain). If you look at an example of it of a kpop group and you know what the members are like, it's much easier to understand