Young Shen Zhixia arrives at a Suzhou embroidery workshop and studies double-sided embroidery under Su Lan. Together they uncover a long-shelved old lotus-pattern embroidery, deciphering the secrets of its stitch paths and color schemes. From separating silk threads and blending water-ripple color gradients to calibrating light and shadow under the eaves using natural daylight, Shen Zhixia gradually sheds her impatient nature. Master and apprentice repeatedly refine the negative space of stitches on both sides, learning to draw colors from real scenes rather than deliberately filling every gap. When the lotus-and-water embroidery is completed and framed, Shen Zhixia decides to stay and deepen her craft. Su Lan hands her a fresh plain silk hoop, and with a single stitch they begin, continuing this slow discipline of Jiangnan embroidery artistry.