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?
Ah, no! Kou-chan is really just a cousin 
and nothing more than that!
!كلا، كو-تشان في الحقيقية مجرّد قريبة ولا شيء أكثر
Nein, nein, Kou-chan ist wirklich bloß
’ne Cousine, mehr ist da nicht dabei.
No, Kou-chan solo
es mi prima y nada más.
No, Kou-chan solo
es mi prima y nada más.
C’est juste ma cousine,
rien de plus rien de moins !
Ah, ma no! Kou-chan è solo mia cugina!
Ah, não! A Kou-chan é apenas minha
 prima! Nada mais, nada menos!