I really dig the way Nero look here. Wish we got this for her FGO ascension instead of "here now her sword is flaming now. Yes that's all."
This is why Nero's love is all-consuming flame, and why she's worthy of being Beast. Im exchange for her love towards her citizen, she purposely or not consumes everything else including her relative's lives.
Which is why her citizens didn't reciprocate them, as none of them understand that madness of love and denounce her as evil instead.
Until 2000 years later where someone at last reciprocate her love.
Nero's story is about love, which I think is pretty clever tie her story to that theme since love and romance is something originated or at least popularized by Romans.