At Daiya-chan's invitation, everyone decides to go to the beach. Chiya and Mafuyu try a lot of different things to help Yuzuka get used to wearing a swimsuit, some more successful than others. For a moment, everyone enjoys the romance of it, but then...
Why does Shiori-chan have a bomb on her, too?
لماذا تحمل شيوري-تشان قنبلة أيضاً؟
Warum hat Shiori-chan auch ’ne Bombe?!
¿Shiori-chan también tiene una bomba?
¿Shiori-chan también tiene una bomba?
Pourquoi même Shiori
a des bombes ?
Perché anche Shiori ha una bomba addosso?
Por que a Shiori-chan
 também tem uma bomba?