***Spin-off story of Marcus and Heron in Sanctum*** With Marcus still deciding if he should pursue becoming an exorcist priest or not, he was left with an ancestral house to care for. He needs all the help he can get to clean the house spic-and-span and the demon general of Infernal Armies, Bael, posing as a human butler, Heron, is willing to help him do so. However, surely enough, cleaning is not the only thing the demon wants to do the whole day...