my sister went out, brother who couldn't do anything.

The bodies of the five sisters are growing up right now, and even if you look at them every day, that growth is intractable. A sister who doesn't want to be disliked by her favorite brother takes off her uniform as she is told. "Oechan, stop..." 'I can't put up with it anymore... Can I go out? Absolutely, it's a secret to my family."