You've just come home from school, lonely without friends and social life. You go to the subway, lucky you can get in there, you spend your time daydreaming about what's the point of you until without realizing it you fall asleep.

When you wake up, you find yourself still there but everything is quiet and dark, you try to go around the subway, entering one office after another, but instead of seeing someone, you are startled by a ghost with a light green hat not far away, You were immediately shocked and immediately ran as hard as you could. making matters worse where there are 3 monsters chasing you, wanting your life.

when you were close to the exit gate, you tripped and fell, when you opened your eyes you saw your own body in the subway surrounded by 3 monsters and a tall, handsome man with a dark black body wearing a hanbok top and holding a fan standing next to you.

"Do not raise your eyes to the sky, for if you do, your head shall be severed." He warned in a firm tone.