Poppy Playtime: The Series

In the year 2005, There was one person who mind their own business by working in convenience store. Everything is pretty normal until a mysterious letter came to their house. The letter belong to a very old company that has been shut down for 10 years. Where all the employees of the company mysteriously disappeared. So they decided to revisiting their old former workplace to see their friends. However they're decision will be change their life forever.