The game starts off with showing a boy, your son, waiting for his mom to come back home after a very long time of not being there, more on that later. You play as a sexual charged vice-principal of a regular school after being transferred to work here from your previous prestigious school you worked at, as a teacher. Before I continue, I can't say I fully understood the plot, but I am confident I am at the very least 80% accurate, if not 90%+ in my understanding of the story. If I'm not, I guess feel free to tell me I'm wrong, lol. Anyway. Your task from your former school in sending you to work here is to "educate the staff faculty, and by educate I mean sex them. So you fuck the PE teacher, and the principal no problem.
While that is going on your old school seems to have reached out to the janitor of the school and given him free reign to train you in this new curriculum and can ask for all the tools he needs. Apparently its going to be part of the natural curriculum in Japan in future? We find out that you, the female MC, have already been trained at said prestigious school by fucking the staff there in the past? (this part was not so clear to me, it seems like it though as you fuck anything with a pulse). Here is where I get lost. So the new training/curriculum is to fuck the the young shota students, and train them to be dominate men, because weak beta's in society will be disposed of in the future. (almost verbatim the reason why, at least that's more or less what comes out of your mouth when explaining the situation to the parents later on in the story). Why the need for the Janitor to train here. She will literally fuck the students no problem if you asked her too with very little force if any required, and due to the situation with her son, she would have had to anyway.
So without going too much into details about the sex scenes and wasting everyone's time, she teaches an after school sex-ed where she teaches kids about sex and how children are made ect... You then get two options. One about only teaching selected students, aka the ones with big dicks, or everyone equally. It makes zero difference except for one scene like right after the choice.
Fast forward a bit while you are the school's cumdump you invite the parents to talk about this new program, and that if they allow their kids to be part of it, they too can go to this pretentious school fully covered. The parents are shocked about it at first, but after she gives that talk about women being dominated, and beta males being weak, and how no parents should want that for their kids, she gets naked and has the dad's fuck her. The parents are then fine with it after her explanation and demonstration.
Fast forward a bit and the students and you the teacher, have your breeding party. Fast forward again after that and you have another sex orgy where you are like 7months pregnant and being filmed and fucked by the class. You then get two choices here. Your first choice is, I only care about my students, and my son is not important, and the second choice is, I miss my son. Picking the second choice will explain the situation you have with your son ( I don't remember if the first choice did or not, it should though). Either way, I'll explain what the situation with your son is like.
One day you get called to the head office of the prestigious school, and the head female there gives you a solution to your problem. Your problem being that your husband divorced you and made up some fake crime against you and got custody of your son, and you have not seen him for many years. She says that we will send you to another school to "educate" them and you will listen to all our instructions, if you do, we will reunite you with your son, get you custody, and make the charges disappear from your records, and give you a place to stay. So you accept.
I'll explain the first choice first you get during that pregnant gangbang I mentioned above, and call it route A.
Route A: You end up having more pregnant gangbang orgies, and then one day the woman that gave you the solution to your son comes in during one of your pregnant gangbangs, she walks up to you and asks what about you son, and you respond with I have more son's here, all the students are my children, and the many more children we will make in the future, I don't need my old son. She smiles, whispers something that you can't make out, and walks out of the room, live goes on after you give birth as you being a cumbucket
Route B: You think about your son, and think yes I can finally be with him after all of this, after the gangbang, you give birth to a healthy child that the school takes away as promised. You then receive a folder saying your task is done, and it gives you the address of where your son currently is. You go into the new apartment, and see your son, you act the same as if nothing has happened for all these years, and smile. Then your son takes off his pants and asks for fuck you. You then realize he was doing the same thing as your students were except in another school. You fuck and get impregnated by your son. You the go back to school and resume your life of fucking students and making sure they are man enough to enter the prestigious academy, and living a happy life with your son.