A man and a woman visit a love hotel to have sex for the first time after dating.
However, Misumi-kun (male)’s girlfriend, Enhi-san (female), was a woman he wanted to penetrate.
Misumi is put to sleep with a mysterious drug and a dodeca penis attacks his anus.
Elements included
・Sex with gender reversal
・Restraint (men only)
・Strap-on
38 pages of text