Succubi are demi-humans that arouse sexual desire in men and cause them to have obscene dreams. One such succubus, Satou Sakie, is extremely careful in every facet of her life, from where she lives to the trains she rides to the clothes she wears, so as to avoid causing these reactions in men. With girlish dreams such as romance and marriage so far out of reach, she thought she'd reached a compromise in her own life, but something changes when an accident causes her to grab Takahashi Tetsuo's hand...
Bloodsucking began as a practice to let 
vampires, who tend to be low on blood,
بدأ مصّ الدّماء كممارسة للسّماح لمصّاصي 
،الدّماء الّذين يملكون فقرًا في الدّماء
Da Vampire zur Blutarmut neigen,
Empezó como una práctica
Empezó como una práctica
À l’origine, si les vampires
attaquaient les gens,
La pratica di succhiare il sangue
Chupar sangue é uma prática que teve início 
porque vampiros tendem a ter pouco sangue,
Вампиры по своей природе
страдают малокровием,