Branch Line 

Four sisters and their mother. The guilt and treasures held by these women. Nie, the youngest of the four sisters, works at an online apparel company. Mariko, the third sister, runs a café. Taiju, the second oldest, works at a government office. Ichigo, the eldest sister, is a single mother. And then there is their mother, who holds the fort at home. Although they now live apart, Gaku, Ichigo's son, who was raised by these five women, is a treasure to all of them. However, have these women always done right by Gaku in his eyes?