Isshiki Kazumasu, on the surface, is a high-ranking official in the Ministry of Health, Labour and Welfare, and one of the strong candidates for the next Minister of Health, Labour and Welfare, as well as a member of the National Diet, but in reality, he is also a member of the Mingyue Society.
The reason he knew Tokairin Yuko was that he had visited UDI, and the reason he visited UDI was that he had met Director Kamikura of UDI at a Mingyue Society gathering and learned that Director Kamikura knew Chen Yu.
Therefore, when he saw Tokairin Yuko looking anxious on the roadside, Isshiki Kazumasu naturally had his driver stop, and he greeted Tokairin Yuko.
Upon learning that Tokairin Yuko was waiting for a car due to a subway malfunction, Isshiki Kazumasu thought for a moment and then said to Tokairin Yuko, "Doctor Tokairin, if you don't mind, please take my car. I just happen to have some matters to attend to in Chiyoda, and it's on the way. I can give you a ride."