The pronunciation of "カツ" of pork chop (dolphin かつ) is the same as "victory つ" in Japanese, so many students will eat "dolphin カツ" before the exam, and wish the exam success.

② Kitkat

KitKat is Nestle chocolate puffing, Kit= affirmation (きっと), Kat (victory), because Kitkat has such a meaning, so many people eat it during exams.

③ leitian

The Japanese word for Baekje is ポッキー, which becomes "Keppel" if it is read backwards, so ポッキー is also a member of Geely Food and is very popular during the examination.

④ Octopus burn

The English of octopus is octopus. If you read it according to Japanese loanwords, it sounds like "pass", so it is extended to (if you burn octopus, you can pass the exam), which is very popular in Japan.

Five sausages

Sausage is called Wiener, which is similar to the pronunciation of Winner, so it has also become an auspicious food for exams.