The Smile Friends

You are an employee of a school that closed three years ago. Now, you have been anonymously invited to explore the premises, but apparently, you are not alone from the school... Creatures are hiding in the school, find a way out... Explore and discover secrets that this place hides, Complete puzzles and press buttons until you find a way out, make friends? I don't know, it will depend on you, enter "The Smile School" and see the mysteries it hides but remember, you will never be alone...