"Sometimes I wonder if life is worth fighting for but then I look at you two and I'm ready for war."
OC was born with strong Tele/pathic/kinetic powers. Her parents were scared of her and sold her to Hydra
OC was subjected to all kinds of tests and experiments that pushed her and her powers beyond what she could handle
OC was experimented on with the scepter
OC's powers get out of control when she's too emotional
OC was considered to be a failure because she can't control her powers, but is too useful/powerful to terminate. She is kept as a last resort and WMD
OC is locked away in a part of the base that keeps her calm (garden/greenhouse)
The twins break into her room because they're curious and become friends with OC
OC and the twins are used against each other in order to keep them in line.ie rewarded with visitation and punished with separation.
Captive cheetahs are given emotional support dogs for their anxiety. Race horses are given goats as companions. The twins and OC serve the same purpose for each other
The twins are technically the only successful experiments