Why didn't the 13th Hospital produce a puzzle box?

The reason why the red flag doesn't come out in the puzzle box of the 13th Academy is that the color of the box is not adjusted correctly.

As shown in the figure below, click the black and white in the puzzle box to display the red flag.

The game is introduced:

13 Courtyard is a horror puzzle game developed by mutual entertainment.

13 The story of Courtyard should take place after the main line series of paper wedding dresses, and the eggs at the end of each film are mentioned to connect all the stories.

You wake up and find yourself in an empty mental hospital.

Your photo is attached to the box, and your information is written in the file.

Is it the truth you can see?

The door is locked and the bolt is welded.

The chandelier is flashing and the shadow is wandering.

Are you seeing hallucinations?