The Defense Department decided to participate in the school festival in order to maintain its appearance as a club activity. I couldn't come up with a good idea, and as a result of the members searching the club room for hints, I found "Party Dice"! Shuzenji says that this item, in which participants deepen their friendship with each other, is perfect as a product. The members were once convinced, but on the day of the school festival, the old birds screamed. The members stretch their bodies to demonstrate the game to attract customers, but ...
部活動としての体裁を保つために文化祭への参加を決めた防衛部。なかなかいいアイディアが浮かばず、部員たちが部室を大捜索してヒントを探した結果、見つけたのは『パーティーサイコロ』！参加者同士が親睦を深めあうこのアイテムが出しものとしてピッタリだと言い出す修善寺。一度は納得する部員たちだったが、文化祭当日は閑古鳥が鳴くハメに。部員たちは客寄せのために身体を張ってゲームを実演して見せるのだが……。
O Clube de Defesa precisa arrumar uma maneira de participar do festival cultural ou ficará com problemas perante o conselho estudantil, e decidem fazer um jogo com dados.
