An ancient painting entrusted to the museum by Gu Xingzhou for restoration. The main issues include water stains, creases, and areas where pigment has flaked off. The restoration plan involves cleaning the painting, removing it from old mounting, separating the painting core from original backing, repairing damaged parts, and remounting it completely. The technique uses warm water rinsing and fine brushes to treat specific spots without harming original ink or pigments.