It's Yume and Mizuto's first summer together as stepsiblings. Their parents are unable to return home one night due to a typhoon. Now alone in the house together, trouble arises when Yume spots a certain creepy crawly in her room. On another day, Mizuto accompanies Yume clothes shopping for a swimsuit in preparation for an upcoming family trip to the countryside. It's in situations like these that the two seem to be finding themselves reminiscing about the past more and more...
Like a couple who've lived 
together for three years?
.إنّهما أشبه بثنائيّ عاشا معًا لثلاث سنوات
Wie ein Paar, das seit drei
Jahren zusammenlebt?
Como una pareja que convive.
Como una pareja que vive junta.
On dirait qu’ils cohabitent ?
Sono come una coppia che vive insieme da tre anni.
É tipo um casal no
terceiro ano juntos?
Они будто три года уже как пара.