A letter comes to the three Kohda sisters in Kamakura, bringing the news of their father's death. A father they hadn't seen since he divorced and left home 15 years ago. Despite feeling indifferent about their father, Yoshino, the middle of the three, and Chika, the youngest, go to Yamagata to attend his funeral on oldest sister Sachi's request. There, they meet Suzu, their young and reliable half sister.
Note: Nominated for the 1st Manga Taisho Award in 2008 and the 23rd Tezuka Osamu Cultural Prize in 2019. Won the 6th Manga Taisho Award in 2013. Won the 61st Shogakukan Manga Award for general manga.