The Steel twins are something of an oddity. The two seem to be practically the same person; Mark routinely finishes Sara’s sentences. If Sara gets punched, Mark tends to say “ow”. They can, for the most part, tell you where the other is and what they’re doing, even if they’ve been apart for weeks. Many occult scholars have lost weeks of sleep trying to get to the bottom of their odd condition to no avail.
The twins matured quickly, both physically and mentally. Standing at a respectable 5’6" by age 10, either could build a D-Engine if left in a room alone with the parts. Now, Standing at a less respectable 5’6" at age 14, they are the youngest members of this military base. They are also the two people responsible for assembling and improving the mech’s in Platoon two; at least, the mechs that people will let them touch. A lot of the members of the base find them even more off putting than the white xenomixs.
In spite of their quick development, both are ridiculously weak. Barely able to carry their own weight (which isn’t much, both are unnaturally skinny), they’ve found it easiest to have others carry their things. Then again, they have to get someones attention to get people to carry their things; something they again have some difficulty with. Being able to communicate effortlessly with each other, they completely neglected to develop the skills to communicate to the outside world. The epitome of the wall flower, the only time the twins can catch someones attention is when they build something truly remarkable. Or do something remarkably creepy.