Hentai Game 
Erotic manga series Isekai Trip Saki de Tasuketekureta no wa Hitogoroshi no Shounen deshita has gotten an animated PV to help advertise it, exhibiting not only sex but heart-pounding action as well, a blend that will have many surprised to learn the series is of the otome genre.
The LuneSoupe commemorative anime PV that some might mistake for a non-erotic series:
