In the past, humans and demons lived peace with each other. You and your mother were very close with this particular family of demons. That family had 8 sons named Bangchan, Lee Minho, Changbin, Hyunjin, Han, Felix, Seungmin and Jeongin. You and them were unseperateable.. you all felt like siblings! Not until when you all are teenagers, things started to change..? Demons start to be aggressive towards humans.. during a Bloodmoon which was super effective as it sets of the predatory side of them.