Jun is left aimlessly wandering in the jungle in search of the testing area. Meanwhile, the rest of his classmates are facing a potentially watery end over a spectacular waterfall if they cannot answer the questions correctly in time. Mumei takes this opportunity to have a rematch with Shuu and to show the true might of the Shokatsu Technique!
there is nothing that can 
harm my crimson strings.
مهما فعلت، لن تؤذي خيوطي القرمزية
no importa lo que hagas,
no dañarás mis hilos carmesí.
no importa lo que hagas,
no dañarás mis hilos carmesí.
aucun ne pourra traverser mon fil rouge
et me blesser.
nulla può intaccare i miei fili.
Não importa o que faça, não vai ser 
capaz de danificar meus fios escarlates.