Akuma no Ikenie

Hajime resides alongside the twin sisters of the Komatsu shrine household. Inori is deeply spiritual, frequently attempting to safeguard loved ones from malevolence using her family’s supposedly potent heirloom rosary. Her sister, Kanau, adopts a much more grounded mindset, often busy preventing Hajime from inadvertently groping women. Meanwhile, a string of bizarre, vampire-like killings begins plaguing the local community. Around the same time, Hajime experiences a dream featuring an attractive female demon named Satan who hungers for his blood. Before long, she manifests in reality alongside her alternate persona, Lucifer. Following a humiliating incident at school, Hajime and the shrine maidens take Satan and Lucifer into their residence. What draws these demonic entities to Hajime, and what is their true objective?