Seiya Takano, a “gourmand” who has been traveling around the world tasting delicious food, returns to Japan after seeing an envelope sent to him by someone else. Inside the envelope was a special half-price ticket to “Akatsuki”, a ramen restaurant in Yokohama that Seiya had once marveled at the taste of. Seiya loses the half-price ticket as soon as he arrives in Yokohama, and decides to go to his old “Holmes Agency” to get his mind back on track. However, the office was closed and the interior, which he could glimpse through the window, was empty. Seiya arrives at the shopping arcade with a twisted head and learns that there has been a murder at his intended location, “Akatsuki”. According to Momo, Igarashi, and others at the scene, the victim was the store manager. A container of sauce, said to be a secret recipe, was missing from the restaurant, raising the possibility that the murderer was related to a rival restaurant.
