My Shadow Is Half a Second Faster

My shadow is 0.3 Seconds faster than me. If I want to go left, it goes left first; if I want to go right, it goes right first. Then it pulled me over. The first time I used it, I knocked over the desk and almost killed myself. This is not a superpower. With each use, the shadow becomes more uncontrollable until... Later I discovered that there was something wrong with not just my shadow, but everyone's shadow. They are crawling out of the shadows and eating reality. Escape? It's useless. The shadow always follows you. Since they can come, then I will come.