Bio-Computer

Doctor Song Dul is working on a secret bio-device that connects to the internal brain functions.She's know as a philanthropist who adopts children and animals,giving them a new chance at life,but when she's at home with closed doors,she's an entirely different person.
Her newest child,Hyun-Song Dul,has the newest and most easily updated version of the chip,and is the only child known to the public,who believe her to be a normal bio-scientist,and a nice person.
Not much is known of her lab,and only Hyun-Song has been in her personal lab and office,and has access to every cell,except the basement.He was always told because it's her only secret,but at night there's noises.
What's in the basement,and why is it such a close guarded secret?