If the demon king is her ‘mother’
hmmm, i think its less likely because i think she did said that her mom is already at the end of the evo tree.. not sure tho.. ╮( ̄▽ ̄)╭
Just that weird attack, maybe a part of her power?
I think its more like her ancestor. I mean her "mother" is the largest spider in the labyrinth. And her "mother" is probably on of the children of the demon king hence why she obeys the demon king a lot.
More like a descendant
If the demon king is her ‘mother’