Elderly Mukai Osamu leads a quiet life, but he is browbeaten by those around him such as his family and a fellow croquet player. Moguro advises him to be more assertive and when he changes his behaviour, people are surprised by his new attitude. However, he takes it too far and pushes over the croquet player who has been bullying him, exposing his baldness and false teeth. He also becomes too demanding with his daughter-in-law so Moguro commits him to living totally alone.