It's nighttime at the Irido residence. Yume has somehow found herself with Mizuto's boxers in her possession. If Mizuto were to find out, it would almost certainly mean she would have to face the punishment of admitting to being the younger sibling. Hoping to avoid this outcome, Yume waits for Mizuto to fall asleep before heading to the bathroom to return his underwear to the laundry basket. But who does she pass in the hallway, but a bewildered Mizuto, mouth agape, with Yume's very own bra dangling from his grasp.
We must wholly and truthfully reveal 
our dirty secrets to one another.
علينا الكشف عن نقاط ضعفنا لبعضنا 
.بالكامل وبكلّ صدق
Wir wollen schließlich unsere
Schwächen ausnutzen können.
Debemos abrirnos
por completo el uno al otro.
Debemos abrirnos
por completo el uno al otro.
et découvrir
les faiblesses de l’autre.
Dobbiamo svelare all'altro
senza riserbo le nostre debolezze.
Vamos revelar toda e qualquer
fraqueza um ao outro.
Мы должны полностью
раскрыть свои слабости друг другу.