This challenge is reserved for the truly first-class. Test your knowledge of essential common sense, manners, and broader general knowledge, then discover your rating!

The definitive public rating app has finally arrived!

Achieve a Perfect No Miss score to earn a super-first-class certification.

If you are confident, share the diagnostic result you receive after completing the check.

◆ Sample Questions ◆

Which is colder, the North Pole or the South Pole?

What was the year before the Showa era began?

What is the sum of the internal angles of a pentagon?

We've compiled a total of 200 questions on common sense topics that any first-class individual would naturally know.

Only a perfect score across all questions earns you the right to call yourself "super first-class".

◆ How to Play ◆

1. Read each question carefully and tap the option that best fits the theme.

2. Press "Answer" to check if you are correct.

3. If you answer correctly, proceed to the next question. If you answer incorrectly, you will retry until you get it right.

After completing all 50 questions in a 4.1 series, your rank will be displayed based on the number of questions you answered correctly on the first attempt.

* 1 Results will only be displayed after you have solved all problems in the series. Please note this requirement.