The early part of the story focuses on the trials and tribulations of Kaya's increasingly hectic workload, then shifts to the developing personal relationship between her and the Director.
The basic romantic storyline along with the vampiric theme was borrowed from her original debut manga Kindan no Koi wo Shiyou.
[3] Several backstory concepts - such as vampires only being able to bear children with humans and the resulting offspring being completely one or the other - was also taken from her earlier works.
[5] Though not intended by the author, the series resulted into becoming a sort of cinderella complex[6] caused by the building mental and emotional conflict between the main characters.
It was serialized by Shogakukan in the josei (aimed at younger adult women) manga magazine Petit Comic from 2006 to May 2009.