It's too soon to celebrate summer vacation for Mumei and his classmates. Something seems off about Miss Ou. With the moon creeping ever closer, Mumei learns that even his Shokatsu Technique isn't invincible.  With the Earth and Haku's life on the line, one final test will put Mumei and the others through the ringer. Is there really anything the Shokatsu Technique can't solve?
If you pass it, you will all 
be accepted as our equals.
إن تجاوزتموه، سنقبلكم جميعاً كنظراءٍ لنا
Wenn ihr besteht, werden wir
euch als gleichwertig akzeptieren.
Si lo aprueban,
los consideraremos nuestros iguales.
Si lo aprobáis,
os consideraremos nuestros iguales.
Si vous réussissez,
nous vous accueillerons comme nos égaux.
Se lo passerete,
verrete accettati come nostri pari.
Se passarem, serão aceitos 
como parte de nossa civilização!