In July 2016, a man stabbed 46 people at a care center for the disabled, killing 19. The ex-employee arrested in the case said, "Disabled people can only create unhappiness". On hearing this, Yuya Sakagawa, an NHK director, was profoundly shaken. His sister Ayumi, 3 years his junior, suffers from cerebral palsy and cognitive disabilities. Yuya wanted to declare proudly and confidently that families with disabled members can be happy. He therefore decided to care for his sister for a month and make a film record of it. The program documents the struggle and the happiness experienced by Ayumi and her family.
