In Chapter 4, you can accept a side case on the notice board in Yokohama 99 called Flight of the Game Creator. Yagami must head to Wette Kitchen on North Isezaki Rd to meet his client. He will learn he needs to track down Shinonome, the game's director, so that he can finish the master version for God-Tier Games.
Follow the marker to the homeless camp in between Sunrise Bridge and W Tsurukame Alley. There you'll find a blue circle to begin Target Search to attempt to identify Shinonome in the area. Look for the guy standing next to a tree.
It isn't a perfect match, but Yagami gives him the benefit of the doubt and asks him if he is Shinonome. It turns out to be a ploy. The real Shinonome appears then drives off in a car, which Yagami has no hope of catching.
Head back to the Fake Shinonome, enter Investigation mode once again, and focus on the Laptop on the left. Yagami will mention that the laptop "reeks of cigarettes." Now, what do you do?
Not long ago, you are forced into a Side Case with a Detective Dog, and you acquire him as a Gadget of sorts. Press Start to open your phone, navigate to Gadgets, then press on Detective Dog—this will summon Ranpo to you.
This will automatically progress the case, as the Detective Dog will use the smell of cigarettes to lead Yagami to the director. Just continue to press up on the left analog, and when you feel the controller vibrate, you have to turn in the direction Ranpo is going. After a short trip, you will find the director.
After a conversation, the head of publishing appears Kinugawa and starts a fight. Play very defensively as this guy uses wrestling moves that can't be deflected. Stick with Tiger style, evade accordingly, and use EX attacks. He will eventually fall.
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