Later, Hajime and Tsugumi discuss the lack of staff at the sanatorium and conclude that only Nina could have accessed the Hell Correspondence, but have no idea how she did so without a computer, which the facility lacks. Outside, Ai's minions discuss Hajime's recent interference with their work and conclude that he is somehow getting information directly from Ai. Hone Onna wonders why Ai would do such a thing, but Wanyuudo suspects that Ai has no idea what's going on. They then note that this case is unusual. Ai appears to Nina, who says that she is tired of waiting. Nina is shocked when Ai says that Nina's request is beyond her power and leaves. Hajime and Tsugumi overhear Nina calling for Ai to come back and run in to ask her what happened. Nina evades them and treats them to dinner. Hajime goes off to make tea and Nina tells Tsugumi that her father left her at the sanatorium and she can't remember her mother. Hajime comes back and asks Nina why she accessed the Hell Correspondence. Nina says that she wants revenge for her father leaving her alone for so long and then asks Hajime and Tsugumi to stay with her forever. Hajime politely declines, saying that he just wanted to see the director, but Nina says she is the only one there. Tsugumi backs away from Nina in fear and Hajime says that he and Tsugumi are a family. Nina thinks that they are abandoning her just like her father and the lights shatter, plunging the building into darkness as Hajime and Tsugumi run away. Hajime tells Tsugumi not to stop running, but "Tsugumi" reveals herself to be a mass of vines that try to strangle Hajime. The construct is destroyed by several fiery knives thrown Hone Onna, who wonders why the minions are helping Hajime. Hajime runs off looking for Tsugumi, who has managed to get outside. Tsugumi calls out for Hajime, but faints when she runs into another construct based on him. Ren carries Tsugumi away before Nina can take her back, using his eye to teleport him and Tsugumi away from the construct when it tries to strangle him. Hajime finds Tsugumi in the building's lecture hall and gets her to the car, but is unable to leave because the tires are wrapped in vines. Nina tries to strangle Tsugumi through the window and Hajime gets wrapped in vines when Ai appears, distracting Nina from her attempt on their lives. Hajime notices Ai just before passing out. Nina demands to know why Ai won't help her and Ai tells her to let Hajime and Tsugumi go. Nina says that she blames Hajime and Tsugumi for abandoning her, but Ai says that she is not Nina. Ai shows "Nina" that she is a doll once owned by the real Nina, who was left at the sanatorium by her father to die alone.
The next morning, Hajime and Tsugumi awaken safely in their car to find the sanatorium dilapidated and overgrown. They head inside and hear the music box playing again. They head to Nina's room and Tsugumi recognizes it as the room in her vision. Tsugumi finds a doll that looks exactly like Nina while Hajime finds an old photograph of the real Nina with the doll. The music box stops and the doll crumbles to dust in Tsugumi's hands.
This episode contains examples of:
- Awful Truth: That Nina's father never meant to return and the doll's owner has long passed away, so her wait, even after death, was for nothing.
- Creepy Blue Eyes: Nina's eyes are quite large and a striking shade of blue in her pale face. Perhaps justified in that they're doll's eyes.
- Dead All Along: The real Nina died a long time ago and the "Nina" we see, is really her doll brought alive by some essence of her.
- Dying Alone: What happened to the real Nina, as mentioned below.
- Ghostly Goals: While she's or some essence of her (and her doll) is more yokai than ghost, Nina wants to take revenge on her father for leaving her alone to die.
- Ominous Music Box Tune: A precursor to meeting Nina is the musicbox (playing Bach's "Air") Tsugumi and Hajime hear on a foggy road.
- Parental Abandonment: Nina's father left her at the sanatorium and promised to come back for her, but she died without ever seeing him again. It's implied he never meant to return. Later, when Tsugumi asks her about her mother, Nina tells her that she doesn't know if she existed.
- Soap Opera Disease: Bordering on The Disease That Shall Not Be Named, what Nina had, though her stay in a sanitarium and an old sepia-toned photo of her that Hajime and Tsugumi find, implies that she had tuberculosis in period before it was treatable or hers progressed beyond treatment. note
- Technicolor Fire: Hone-Onna's knives are wreathed in blue flames.
- Voice of the Legion: Nina's Tsugumi construct has a voice that sounds like Nina's, but is distorted.
- Villainous Rescue: Though only Hajime sees Ai and her minions as evil, they directly intervene to save the Shibatas from Nina because, as Ai tells Nina herself; "What happened was not their fault".
- Undeathly Pallor: One of things that clues us to Nina being a little off, other than her eyes, is the girl is paler than the living the characters. In one shot, her skin-tone looks like the color of her dress.
- Yandere: When Hajime and Tsugumi try to make their escape, Nina loses it and says (to Ai), "THEY'RE the wrong ones! They're trying to leave me, just like father did!"
- Yōkai: The doll is (implied to be) a tsukumogami, taking her owner's feelings and manifesting them.
