each week focuses on different sisters and is a message to the big brother from the point of view of each sister.
  The twelve sisters are cute, honest and easily lonesome. And they all love the big brother! It is too bad that the sisters have to live apart from the big brother. They can meet only on the "Big brother day". Because they could only see their big brother at the time, they think about him constantly.
  One of the sisters, Karen, has been waiting for that
"Big brother day" and as it comes closer, she is really excited. She dreams that she may marry the smart and gentle big brother someday. She gets dressed in the white dress he has given her as a present and goes out to meet with him. But on the way a little child with an ice cream bumps into her and soils the sleeve of her dress and this really makes her feel awful. So Karen is feeling badly because of the dress despite the fact that she is meeting with him. It was that moment. Big brother wraps a checked ribbon around her sleeve. The ribbon is the perfect complement to the white dress. A smile comes back on Karen's face. Other sisters come, too and a wonderfully happy "Big brother day" is about to start.

Main Staff
Original Story : Naoto Tenhiro , Sakurako Kimino
Chief Screenwriter : Masaharu Amiya
Character Design : Yasunari Nitta
Animation Production : ZEXCS
Director : Nagisa Miyazaki, Tsubame Shimodaya
Representing company : King Record Co., Ltd
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