[Isekai Anthology] Isekai Demon Demon Mother and Daughter

*“Fuck the hero.”* *“Of course… Wait, what?"* A normal (?) office worker who’s fine after jacking off fifteen times in a row was summoned to another world. Who he met up with was not a goddess, but a demon lord? Plus, if he wants to return to his original world, he has to make the hero fall, something even the demon lord couldn’t do?! (Source: Lezhin, translated)