Four girls born in the 1990s gathered in Block A on the 16th floor of Jiahe Garden because of fate. Each of the four rooms has its own owner with a different personality. Everything that happens here is just a microcosm of this big city. This space records what happened during the years of renting together and the changes in a certain section of the city. Humans are social and environmental animals, and what we think, do, and gain are our reactions to external stimuli. The 16th floor of Jiahe Garden shows us how people with different personalities and environments face themselves, the outside world, the past, present, and future.