I wanted to document various stories around apartment buildings from the first-generation urbanologist of Seoul and also from the apartment generation who was born and raised in apartments. They have cozy memories, upcoming anxieties and inconvenient experiences in their apartments, and in addition, they have witnessed the street trees growing up all the while. I was sad to hear that the residents do not garden trees because they want to start to rebuild as soon as possible.Therefore, the life circulation of an apartment building in Korea is only 30 to 40 years.