Hwa-young is an 18-year-old student living alone. Her friends call her "mom" and use her house as their place to hang out, but don't really include her in their clique. Hwa-young pays particular attention to one of the friends, Mi-jeong.

An ordinary housewife In-yeong meets carpenter Hui-su by chance in a café and for fun they decide to become coffee mates: friends who only meet in cafés and nowhere else. In a café, they share everything, from their daily routines to their deepest secrets, which have never been shared with anyone before.

The human is the lonely existence. It has nothing to do with an age. There is the other reason. Live, therefore. It is that it became an elderly because it was faithful to the given role and it got old one.