Shuichi Saihara, a working detective who seemed to be tired all the time. He had no time to visit parties or go clubbing, especially not with his old classmates. Well.. he didn’t plan to. Miu threw a class reunion, everyone being there apart from Shuichi.

Later that day, just as Shuichi was relaxing with a cup of coffee, he received a phone call. It was from Miu, telling him to pick up Kokichi and take care of him because he was too drunk to remember where he lived.