Shang Beize's medication box containing pills for his stress-induced myocarditis, a heart condition triggered by emotional distress. When experiencing a vivid hallucination about Su Yundai rejecting him, Shang Beize's hands were too weak to open the box. He pressed too hard and the box tumbled to the floor, scattering pills everywhere under the bed, nightstand, and curtains. This incident symbolizes his loss of control and emotional breakdown.
