A growing number of people are living away from their families due to the declining birthrate and aging population. “My notebook” is a tool that makes it easy to get acquainted with the current situation in situations where it is usually difficult to know each other's situation. With regard to nursing care and funerals, you can leave a message on your iPhone or iPad camera that you want to convey when something happens. There is also a normal SNS function, so you can connect with many people, including exchanges with people other than your family. There is also a public setting function, so it can be used like a diary.