This is an escape game that you can play for free.
One day,you fell asleep during the lesson.
As punishment,your teacher set you a difficult problem.
Unless you solve this problem,you can't go home.
Let's search the school for clues.
First,get a "Key Item" that helps to solve a problem.
Then,if you use the "Key Item" well, you may be able to
solve difficult problems...?
Sometimes you need to make something by combining items.
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