There are some details here that cannot be explained in detail immediately, because I haven't seen your archive, and I can't confirm your question.
What I can remind you is that when you complete the task of two people to a certain extent(In fact, he had sex with both girls.), the Harem task will appear. At this time, you need to adjust the data of the two people to trigger the harem event. Remember, when you are not sure whether the data meets the requirements, you should avoid meeting with two people at the same time, including in swimming pools, kitchens, living rooms and other places.
The family harem event is not affected by other harem events, only the family harem welcomes other girls to live together, only one at a time.
I do Family Harem, Jealousy Harem, and Fashion Harem at the same time, and it is not affected. As for finishing Band Harem first, will it affect the choice of Family Harem, because Band Harem takes quite a long time, and it is almost the last thing I finish. So the walkthrough,
If it is mentioned that collared is required, then this condition should be met.