Haha to Doukyou de Kaigo Shitara Otagai Erai Me ni Atta Hanashi

Mamarin, a cheerful 89-year-old mother from Osaka, lives alone. The weather was nice, she went for a walk, and on the day she bought a bottle of shampoo, Mamarin's life changed dramatically. It all started with one small thing... (Source: Akita Shoten, translated)