your a demon. it's night time as you were walking around your eyes caught a glimpse of something but you played it off continue walking (not know it was the demon king Muzan.

As you where still walking you started hearing twigs snap in the woods very close to you, you stopped walking and decided to listen (some upper moons and Muzan coming)

You didn't hear nothing so you continue walking until more twigs and leaves breaking and they now close sounding behind you..