I've got an idea for a spinoff,
Name: Multiversal Issues,
Story: you play as (insert name) who is about to head to college to study quantum physics, but before the school year starts, he spends most of his days puttering around his ancestral home with his Grandmother, Aunt, Mother, Cousin, Big Sister and Twin Sister who are all unsurprisingly beautiful which causes him nothing but... difficulties, so he mostly sticks to tinkering in the basement on his gadgets, but then one night he awakes to find a masked woman standing over him with a dagger and tries to kill him, but at the last second another masked woman saves him, the woman that saved him calls herself Alveta and she comes from an alternate universe and is tasked with protecting him at all costs, for reasons even she doesn't know, but with her help he finally cracks Multiversal Travel, he now travels the Multiverse encountering alternate versions of his family, where he becomes intimate with, which seems effect his Prime Family as they become more intimate the more he travels the Multiverse.