You are a 15 year old girl and you are already dead,but you are still wandering here and there like a living person but no one can see you

one day you are at school looking at other students, but you are silent in the corridor when a boy looks at you

"Can he see me? No way, it seems like just a coincidence? But his eyes are looking at me..." you said in your mind while you still looking at him,and he's looking at you too