And so this how it turned playing with the arachnid!AU it turned into a entirely new AU(I have no name yet, the fortress is too cryptic and darkmin, even heavily inspired by pikmin, this isn't really a pikmin AU... yet... maybe shadowland but sound a bit too cliche)
Now the only thing that link with the previous Arachnid iteration is arachnid!six and bug mono. But they're a catch, those aren't their original appearance. Well they're supposed to be normal* human children (well mono in this AU have low tier psychic power and six got some genetic modification so she unnaturally tall and muscular for a 9 year old, mono is like 12 for comparaison) It just their oppressor captured them once for all transformed both of them into horrifying monster*
BTW already started to write the fic, asked an invitation for AO3 I wouldn't have one in 2 week. At least the introductory page is done