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...
As far as I know, gender swap 
movies are a pretty niche genre.
حسب ما أدري، أفلام تبادل الجنس
.نوع ملائم للغاية
Soweit ich weiß, ist Transsexualität
eher ein Nischen-Genre.
Y la verdad, ese suele ser
un género muy de nicho.
Y la verdad, ese suele ser
un género muy de nicho.
À ma connaissance,
Da quel che ne so,
è una tipologia piuttosto di nicchia.
Até onde eu sei, filmes de troca de
gênero são um gênero de nicho.
Насколько я понимаю,
жанр, в целом, является нишевым.