Delicate
Dainty, Fine
noun, な adjective
せんさい
微か （かすか） Delicate, Faint, Indistinct, Dim
微妙 （びみょう） Not So Good, Not Really, Delicate, Subtle
繊細 （せんさい） Delicate, Dainty, Fine
They send せん specialized cyborgs さい to do Delicate work.
I sense-I せんさい wasn't Delicate enough.