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 can do whatever we please.
،ولكن خارج هذا المنزل
.يمكننا فعل ما نشاء
Dafür machen wir aber draußen,
was wir wollen.
Fuera de casa
podemos hacer lo que queramos.
Fuera de casa
podemos hacer lo que queramos.
On fait ce qu’on veut.
Sans aller gêner l’autre non plus.
Ma, fuori da questa casa, 
possiamo fare ciò che ci pare.
Em troca, fora desta casa,
podemos fazer o que quisermos.
Но за пределами дома
можем вести себя как хотим.