Shen Yan returns to the old street calligraphy studio to stay for a while, and is forced by his grandfather Shen Shoumo to start from washing brushes, correct stance, and writing in the wind. Developer Zhou Cheng gives them seven days to sell. Shen Yan and Lin Xia hold a public experience event where people "watch only the movements, not the characters," weathering viral controversy and a misleading edit. He opens an old wooden box and discovers his father's unfinished method. At an open class under a dark sky, his grandfather injures his hand, and Shen Yan takes up the brush to teach, deciding to stay and carry on the tradition—keeping the ink vein still wet.