Maou-sama wa Yuusha no Ken de Midaretai

After defeating the Demon Lord, the Hero returns to the village. However, the Demon Lord did not disappear, he is sealed in a holy sword, taking the form of a small and cute figure staying at the Hero's house. What's more, the Demon Lord can only obtain his meals after having sex with the Hero...!?

(Source: Futabasha, translated)