The annual Aterazawa and Katsuragi family trip to Hawaiian Z has finally arrived. But with Ayako and Takumi's relationship still up in the air, and Miu having declared her intent to steal her precious Taku-nii away from her mother, things are more than a little awkward! Ayako is determined to make the best of the trip and even musters up the courage to show off a cute new swimsuit. However, it seems Miu has some tricks up her sleeve that will make this vacation one they'll never forget!