Illustrator Su Nianqing moves into Mingde Building and meets Chen Weichi, an eighth-generation kite craftsman. The two become acquainted through a damaged goldfish kite and often arrange to test-fly kites on the rooftop, sharing their innermost thoughts with each other. The warmhearted delivery rider Fang Xiaoman frequently keeps them company. Together, they make kites by hand, passing warmth from one person to another. A long-buried story is eventually revealed: the butterfly kite that Chen Weichi flew many years ago once brought comfort to Su Nianqing's mother. Their hearts finally find a connection, and through bamboo, silk, and paintbrushes, they preserve the tenderness of everyday life and the craftsmanship of intangible cultural heritage.