Snow? In the classroom? Mumei and Koui face a new test and attempt not to freeze to death. A mysterious examiner awakens from his 10,000 year slumber to whip these cheating students into shape. However, things take an unexpected turn when Mumei's crush, Ryuu Haku, is accused of cheating. Will Mumei be able to clear her name and win her favor?
On my life as a teacher, there was 
absolutely no cheating, Mr. Mammoth.
بحياتي كمعلّمة على الرهان، لم يكن هناك
أيّ غشٍ قطعاً، أستاذ ماموث
Bei meiner Lehrer-Berufsehre:
Jamás han copiado en mi clase desde
que soy profesora, profesor Mamut.
Jamás han copiado en mi clase desde
que soy profesora, profesor Mamut.
Sur mon honneur d’enseignante,
Glielo giuro sul mio onore di professoressa,
Na minha vida como professora, 
não há trapaças, professor Mamute.