Illya's enjoyable summer isn't over! After changing into a yukata, she joins the usual gang and heads to a local festival. As Illya enjoys yo-yo fishing and lottery drawings at the festival, she realizes something dire--she was supposed to wear underwear beneath her yukata! A great tragedy befalls upon her!
If our yukatas start coming undone, 
it will ruin everything.
Wäre sowieso alles umsonst gewesen,
wenn die Yukatas sich jetzt lösen würden.
Si nuestros yukatas se 
estropean, todo se arruinará.
Si nuestras yukatas 
se estropean, todo se arruinará.
Je ne voudrais pas
que mon yukata se défasse.
Se dovesse slacciarsi lo yukata, 
sarebbe un dramma.
Se nossas yukatas começarem a
 se desarrumar, isso será o fim.