Wasikar ta zo wa 'yan uwan Kohda uku a Kamakura, suna ba da labarin mutuwar mahaifinsu. Mahaifin da basu sake ganinsa ba bayan ya saki ya bar gida shekaru 15 da suka gabata. Duk da jin rashin damuwa game da mahaifinsu, Yoshino, na tsakiyar su ukun, da Chika, ƙarami, sun je Yamagata don halartar jana'izar sa bisa roƙon babbar yaya Sachi. A can, suka haɗu da Suzu, ƙuruciyarsu kuma amintacciyar 'yar'uwarta.
Umimachi Diary ta sami Kyautar Kyauta ta Manga a bikin bayar da kyaututtuka na 2007 Japan Arts Arts. Hakanan an zabi shi don Manga Taisho na 1, inda ya zo a matsayi na 3, don lambar yabo ta al'adun Tezuka Osamu ta 12, inda ta zo a matsayi na 2, da kuma lambar 13 ta Tezuka Osamu ta Al'adu.
