Old apartment buildings. Corner shops. Empty classrooms. These familiar scenes from early-2000s China have become the heart of Chinese dreamcore, a local take on the global dreamcore aesthetic that transforms everyday childhood memories into dreamlike visuals. The hashtag #ChineseDreamcore has racked up more than 2.5 billion views on Douyin, with many users saying, "It feels like remembering a dream I once lived." Just as people around the world revisit the culture that shaped their youth, Chinese dreamcore shows that nostalgia is a feeling that crosses generations and borders.