Navigating the complex murder mystery of Inaba in Persona 4 Golden requires careful deduction, especially when the Investigation Team needs to rescue the Detective Prince, Naoto Shirogane. After Naoto disappears into the television world, tracking down specific leads in the real world becomes mandatory to unlock the next major dungeon. Successfully gathering these environmental clues requires exploring the town and speaking with specific citizens in a strict chronological sequence.

Triggering the Initial Investigation in Inaba

The search begins automatically in mid-September after the school field trip concludes and Naoto vanishes from the local area. To start gathering information, players must head directly to the Classroom Building 1F at Yasogami High School to initiate the dialogue chain. Speaking with a female student standing near the entrance provides the initial lead regarding Naoto's recent movements around town.

After acquiring this student's perspective, players need to visit the Samegawa Flood Plain area to locate Naoto's grandfather. Finding the elderly man near the riverbank advances the story quest line and unlocks the next set of town interactions. These early steps ensure the Investigation Team establishes a reliable baseline of data before expanding their search radius.

Locating the Critical Contacts in the Shopping District

Once the initial requirements are met, the investigation shifts focus directly to the bustling streets of the Shopping District. Players must navigate to the North Shopping District and engage in a conversation with a local police officer stationed near the shrine. This officer provides vague but essential context regarding suspicious individuals seen loitering around the neighborhood.

To solidify these findings, players must wait until the following day to gather the definitive piece of evidence needed for Rise. Return to the Flood Plain to speak with the grandfather again, then head immediately to the South Shopping District to find the policeman near the electronics store. Speaking to him yields the final description of a sharp-dressed individual, completing the prerequisite information gathering.

Unlocking the Secret Laboratory Dungeon

With all the pieces of the puzzle assembled, players must return to the standard meeting spot at the Junes Food Court to share their findings with the team. Presenting the gathered information allows Rise Kujikawa to track Naoto's exact magical signature within the Midnight Channel. This unlocks the Secret Laboratory dungeon, a high-tech subterranean network filled with powerful shadows and complex environmental hazards.

Successfully completing this tracking phase is crucial because the game imposes a strict deadline to rescue the young detective before the fog rolls in. Rescuing Naoto not only advances the main narrative but also allows the team to recruit a highly versatile combat ally specialized in Light, Dark, and Almighty skills. Mastering this investigation sequence ensures players protect their schedule and maintain optimal social link progression throughout the autumn months.