An old Japanese mother, Haruko comes to Tokyo from Osaka to see her 30 years old son, Shuji. Her purpose of the visit is setting up a matchmaking for him because he is still a single man. However, Shuji already uses a matching app to find his partner. On the other hand, Haruko cannot trust the app, so she tries to convince him quit using it. There is a huge gap occurs in between the parent and child.