Ep. 12: Natsume frees a boy sealed in a coffin and confronts the youkai stalking him with Nyanko-sensei's aid.

Natsume discovers a young boy named Kai trapped inside a coffin within an abandoned house. He releases Kai and learns that the boy is being pursued by a youkai. Eventually, Natsume himself becomes the target of this creature. With assistance from Nyanko-sensei, he successfully stops the stalking behavior. The narrative reveals that Natori, who initially appears as the stalker, is actually the one who sealed Kai in the coffin. Natori then informs Natsume that Kai is a youkai. This encounter highlights the complex relationships between humans, youkai, and the individuals who manipulate their fates, concluding with the revelation of Kai's true nature.

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