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...
Oh, but when I spoke to 
Takahashi-sensei about it...
...لكن عندما تحدّثت مع تاكاهاشي-سينسي
Aber als ich einmal mit
Herrn Takahashi darüber sprach …
Pero cuando hablé
con el profesor sobre eso…
Pero cuando hablé
con el profesor sobre eso…
Mais quand j’en ai parlé
à M. Takahashi…
Oh, però quando ho parlato
con il professore di questa cosa...
Se bem que quando conversei 
com ele a respeito...
Но когда я спросила Такахаси...