- A young daughter supports her father who is diagnosed with Alzheimer's disease.
Keisuke Kinoshita (Etsushi Toyokawa) and his only daughter Miu (Mana Ashida) live in the housing unit for Nakamura Factory, where Keisuke works. Keisuke's wife died 8 years ago after giving birth to Miu. Back then, Keisuke worked for a large construction company. In order to raise Miu with full of love, he quit his job at the large construction company and began to work at Nakamura Factory.
Every morning, Keisuke is busy preparing Miu for school. One day, Keisuke realizes that she forgot to take her jump rope. Keisuke then goes to school with her jump rope and promises to buy her a new water bottle for the next day's school picnic. The President of Nakamura Factory Tomio Nakamura (Keizo Kanie), his wife Chieko (Mitsuko Oka) and colleague Akio Katsuta (Shohei Miura) all tease Keisuke that he overprotects Miu, but they also look at them with a warm heart.
An accident then takes place. Akio carries a large item and loses his balance....