Kalata imabwera kwa alongo atatu a Kohda ku Kamakura, ndikumabweretsa nkhani yakumwalira kwa abambo awo. Abambo omwe sanawone kuyambira pomwe adasudzula ndikuchoka panyumba zaka 15 zapitazo. Ngakhale samanyalanyaza za abambo awo, Yoshino, pakati pa atatu, ndi Chika, womaliza, amapita ku Yamagata kukachita nawo maliro ake pempho la mlongo wamkulu Sachi. Kumeneko, amakumana ndi Suzu, mlongo wawo wachichepere komanso wodalirika.
Umimachi Diary idapambana Mphotho Yabwino Kwambiri ya manga pa 2007 Japan Media Arts Festival Awards. Idasankhidwanso ku 1st Manga Taisho, komwe idakhala m'malo achitatu, pa Mphotho ya 3 ya Tezuka Osamu Cultural Prize, komwe idakhala malo achiwiri, komanso mphotho ya 12 ya Tezuka Osamu.
