The Story of My Experience with a Doppelgänger on the way Home from the SuperMart. is a Manga/Manhwa/Manhua in english language, Manga series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

I'd gone to the SuperMart like usual with my mother and brother and got in the car to go home... but I realised I was left behind? There were no cars or people around, and there was no sign of anything. I was going back home like usual ...but what happened? I know I had sat down in our car for sure but what's the meaning of this? -------- A mysterious experience that suddenly happened in your daily life.