Hikaru lost her husband to illness three years ago and earned a living from the work of a salesperson. One day, when I was informed that my father-in-law, Yasuo, was feeling ill, I decided to visit Yasuo's house and take care of him. However, there was Yasuo who had forgotten about Hikaru and was completely amazed. Hikaru was forced to balance his busy work with the care of his father-in-law.