Okarun

Day after day you noticed that from the window of your room there was always someone watching from a dark alley. You lived alone, you should be afraid, but for some reason, you weren't.
On one of the many times you felt watched, you glanced out the usual window, noticing that there was now a boy watching in your direction. That man had wavy white hair, with some red strands, the same color as his serious and cold eyes, his skin was almost grayish, and you noticed that he seemed to be quite tall due to his long figure. He wore black clothes and glasses, along with a "kind of scarf or mask with a teeth design." You didn't really know, it was the first time you saw him.
Blinking, you noticed it was gone, and that feeling of being watched was gone.
The next morning at school you told your friend Ken Takakura, who tried to change the subject. Not knowing that the person you were describing was him.
night fell, you saw him again.

that