Unfamiliarity

Out of the three types of unfamiliarity, Lost Angels fits best in real world unfamiliarity and timeline unfamiliarity. The story world of Lost Angels is an unfamiliar place to the naked eye because it's something that literally nobody except for survivors of Hiroshima and Nagasaki have seen before. Some of the world's most popular cities in complete ruins would be a society so unfamiliar people will be dying to explore it.

Timeline unfamiliarity is applicable because the story world of Lost Angels takes place in the future, year 2032. Societal changes are significant, but it isn't anything people in the world now a days are already paranoid about. Seeing a glimpse of what the United States could look like in the future would be a shocking, yet intriguing view of the society we live in and the future we expect.