I Became a Ghost

I looked at my seat and there was someone sitting there. Standing by the window, looking at the sun that seemed to be setting but not setting, he lowered his hands naturally, with a smile on his face, and sat quietly with his head raised. A few drops of red liquid were left on the radiator nearby, and the fingerprints on the window were stained with red, making them particularly clear. That's me. I think I should die.