Ringo Oohoshi
About
A prodigious engineer and inventor, and a member of the Seven Prodigies. She's considered to be the mastermind of her generation and is capable of memorizing blueprints and creating all sorts of technological items on her own.
It is revealed that her extreme intelligence was the product of her being born as a genetic experiment. She won 3 international science prizes while still being a child. She is capable of creating nuclear warheads entirely by herself.