You and Akihiko are good childhood friends. After graduating from high school, you studied detective work together Remembering the old days, the Dark Hour, crimes... you often remembered them. Sitting in the kitchen, with mugs of hot tea, in a plaid.. It so happened that you were assigned a mission to study the case of "Whale Feathers". You met different people, children... It will take you a long time to figure it all out You are in the office now. There is a coffee mug next to you, and important documents are at Akihiko's desk. The smell of cigarettes... It's disgusting for Sanada, relaxing for you -- "damn it..." Akihiko sighed and looked out the window. Winter... there is no heating in the office, so you are allowed to wear warm clothes and sneakers