Slice of life is a depiction of mundane experiences in art and entertainment. In theater, slice of life refers to naturalism, while in literary parlance it is a narrative technique in which a seemingly arbitrary sequence of events in a character’s life is presented, often lacking plot development, conflict, and exposition, as well as often having an open ending.
So many options in Japanese cinema. It’s a more common genre there, or so it seems. Nobody Knows comes to mind.