Dusk in Cangnan City is always shrouded in gray fog, and the iron fence of the Third Mental Hospital glows coldly in the dusk. Lu Chen took off his gloves stained with disinfectant and ran his fingertips across the blind cane in his pocket - this carbon fiber cane was more intimate than his medical exam notes, and the anti-slip pattern on the head of the cane had already been touched to shine.