Before his death, the founder of the Miracle Magic Bottle Company, Oyashiki Yan (played by Nakamura Atsushi), said to his son Oyashiki Toshiro (played by Naoto Fujiki): You are not suitable to be the president if you hand over the company to Kaneda Ichizusano (played by Kimura Takuya). Unconvinced, Tong Tonglang squeezed Kindaichi out on the grounds of leaking company secrets...