A collection of pinned butterfly specimens that Meng Yancheng maintained as an obsession. The real one was in his penthouse with perfect symmetry, representing moments when his gaze lingered on Xu Qin. Xu Qin created a counterfeit version in the villa. Each pinned butterfly carried his unspeakable longing. After Xu Qin's engagement to Song Yan, Meng Yancheng tore down the real wall.
