The Call of the Night (Yofukashi no Uta) manga by Kotoyama will take a break for one issue, the 41st edition of Shogakukan's Weekly Shonen Sunday magazine said on Wednesday. The manga will then return in the 43rd issue of the magazine on September 21. The manga will be put on hold because Kotoyama has "that disease that's been going around," but the author has already recovered, according to the magazine.

The ninth volume of the Call of the Night manga, which Viz Media has licensed, will be made available in English on September 13. The manga is described thus:

A vampire is Nanakusa. Ko the human is fine with that. He also aspires to be one. But change doesn't happen overnight...
Ko is thrilled when Nazuna invites him to stay the night at her apartment in an abandoned building! He then awakens to neck kisses that have a bit too much bite to them. Does she only meet him every night for late-night excursions, talk, and...naps because she loves the taste of his blood? or another thing? Then, as a cute girl from Yamori's past arrives and vies for his affection, his developing relationship with her is put to the test.

In August 2019, Kotoyama (Dagashi Kashi) released the Call of the Night manga in Weekly Shonen Sunday. On September 15, Shogakukan will release the 13th volume of a compilation work.

A television anime that debuted on July 7 and is now airing is being inspired by the manga. The anime is available on HIDIVE for streaming with English subtitles as it airs in Japan.