The next episode appears to reimagine the manga's 40th, 41st, 42nd, and 43rd chapters.
The main characters include Ko Yamori, his childhood friend Mahiru Seki, vampire Nazuna Nanakusa, and detective Anko Uguisu, according to the preview images.
Anzu kills a vampire who hasn't sucked blood for ten years. Ko begins worrying after she tells him that he knows nothing about vampires. Mahiru also asks him what he wants to do after he becomes a vampire, which adds to his worries.
“That’s correct. I know nothing about vampires,” the preview trailer for this week concludes the video. The protagonist remembers the vampires he has encountered so far.
In Shogakukan's Weekly Shonen Sunday, Kotoyama is the voice of the Call of the Night series. The manga was titled after the Creepy Nuts' song of the same name, "Yofukashi no Uta." Both the opening and the ending songs are titled "Daten" and "Yofukashi no Uta." The adaptation is being directed by Tomoyuki Itamura.