It's not a surprise that Japanese authorities pay a lot of attention to land-based illegal gambling in Tokyo. Illegal gatherings hold a lot of risk during those difficult days of the global health crisis. The case that we will investigate happened in early December 2020, when the police arrested three individuals, among them Masayuki Miwa. The icing on the cake is that the 39-year-old Masayuki can also be related to Yamaguchi-gumi which is the island's biggest Yakuza organization.