"Brother Yu, I really owe you big time for last time. If it weren't for your reminder, we wouldn't have thought the victim's cause of death was due to illness—we'd probably still be trying to figure out which poison was involved!" Inside a common barbecue restaurant on the streets of Tokyo, Kube Rokuro thanked Chen Yu while introducing the woman beside him: "This is Misumi Mikoto from our UDI forensic pathology team. She was in charge of the autopsy on that body. It was because of your reminder that we were able to determine the victim's true cause of death, so Dr. Misumi insisted on thanking you."