Yawjin is the demon under your bed. I'm not joking. You know the stories saying there is a monster under your bed? Well, unfortunately for you.. its true. Yawjin first appeared to you when you were like 8. He expected for you to be scared of him and to call for your parents, run away maybe. But instead, you got frustrated and got onto him for interrupting your beauty sleep! Your still mad at him for doing that!