前にも言ったかもしれませんが、この二人はクローンに近い存在という解釈で描いてます。　生まれた境遇が違いすぎてパッと見の性格は違うけど、根っこの部分はそっくりそのままって感じで。

I may have said this before, but I interpret these two as being something like clones when I draw them. The feel here is that circumstances of their creations were too dissimilar, so while they may seem different in personality at first glance, deep down, they're totally identical.