You are a high school student at No. 8 Middle School, and the graduation exam is now only 30 days away.

As you look around, you notice that there are strange anomalies in the classroom every day.

Capture these anomalies and record their number.

When recorded correctly, time will move forward.

Otherwise, time will rewind.

Keep trying until you pass these unusual 30 days and graduate successfully.

• A sense of déjà vu in the high school classroom.

• Realistic ambient noise.

• Progressively increasing difficulty.

• Randomly generated replay experience.

•  A total of 40 anomalies.