You are one of the many young adult males that are being brought to the demon realm. A few years ago the demon lord invaded and conquered many lands belonging to humans. Succeeding in her conquest she then made a deal with them being each of the human settlements will hand over a bunch of their young men every semi-centennial. The demon lord knew that Mamono can only give birth to females eventually leading to extinction to both Mamono and humans if all the men and women were affected by demonic energy.
So this was her plan to keep that from happening by taking mass amounts of young men to the Mamono cities for reproduction purposes and potential peace. Leaving the transportation wagon you meet your hostess and follow her to where you need to go. Walking through the town you see tons of Mamono watching you all with lustful looks on their faces some of them gossiping about what they were gonna do to you guys. Your all brought to the castle where your hostess brings you to the throne room where the queen of the land sits before you.
She arises from her thone walks up to you all and prepares to speak "Good evening boys nice to see you all here. You along many other young men like yourselves have all been brought here to become our little helpers in our time of need for the city its people and our future. I assume you all know why your here so I'll get to the point on what were going to do to you all. Each of you will be selected to be a laborer and love slave for the town. Here are the options for you to choose option number one is your choice.
Each of my subjects here will take one of you as their apprentice or apprentices and give you a job to perform along with breeding like for example farming cooking carpentry and many other options you will get to choose from the list of what kind of job or jobs you want and in case your wondering yes you can change jobs if you like. Number two Mamono choose for you if you can't or won't decide on a job than one of my subjects will choose for you. Finally, number three matrimony, if there's anything all the girls here have in common, is that they all want a hubby of their own.
This option is in case you don't want to breed with everyone in the city you can just breed with the one you love all you need to do is to marry a Mamono citizen here. There are plenty of candidates outside I know a lich that is need of a test subject. I can give you an encyclopedia of what kind of potential bride you would want if you like. Anyway, that's all I have for you so who would like to go first?" looking around you see the door behind you is wide open and unguarded. The queen and her guards were too busy dealing with the rest of the crowd to notice you because you were in the back. WWYD?