Shino Kishibe, a high school student, 17 years old. For half a year, she has been living with her brother's wife, "Nozomi-san," and their cat, "Taisa." Just a little bit—only a tiny bit—her world that colors her life has changed. "Strangers but family"—this is the fourth volume of a daily sensitive story that depicts the peculiar, clumsy, and slightly introspective relationship between these two.