An unprecedented scandal of human experimentation by a well-known company is uncovered. The cool and intelligent yakuza Hakuryu confronts the big company and faces the bullets that aim at him, which makes his hands sweat. Tatsuya Shirakawa, a young head of the Kurosu clan, receives some information from a new gang member, Toshio Hatakeda. It is a startling revelation that a well-known pharmaceutical company, Sekai Pharmaceutical, is forcing its employees to take a dangerous new drug. The reality is that the company is actually conducting experiments on human subjects, and Shiryukawa is once again forced to take action.