Sunflower That Disappeared in the Rain

Episode 5 (1x5)

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Investigators including Omae (Noriko Kokoshi) gathered in Nara to find just one postcard out of the enormous amount of postcards, and a tenacious search began. Seisoku who believe in Nara and keep praying. However, the endless work mercilessly cuts down the physical and mental strength of the investigators. Meanwhile, Nara's intuition as a detective leads to a truth about the identity of the kidnapper. Will Aoi, who disappeared, be safe? Is there hope beyond where Nara is headed?