The Defense Club are spending their summer vacation in the Kurotama Bath as usual, but Karls wants to enjoy a proper Japanese summer break! What deal will he forge with Kyotaro to make his dreams of fun come true?
Summer's not complete without 
watermelon smashing.
لا يكتمل الصيف دون كسر البطّيخ
Bei Sommer denke ich immer
an Wassermelonenschlagen.
En verano hay que romper sandías.
En verano hay que romper sandías.
L'estate non è tale,
senza il gioco di rompere le angurie.
Se falamos do verão, temos que
 brincar de rachar a melancia.
И обязательное разбивание арбуза.