ATID-654 A house where an incubus dwells

``Who is the one who married your mother with a hump and is paying for her hospital bills? Thanks to her, our family finances are on fire. You have an obligation to cooperate, too!? Today is a new customer, so give her a good service so that she will come back again!'' Konatsu is unable to disobey her father-in-law and is forced into prostitution by men who like girls.Rei, the homeroom teacher, is worried about Konatsu's frequent absences and early departures, so she visits him at home, but...