Reika was turned into a cyborg by Dr. Kouzuki.
The most unique part of her body is her robotized left arm.
Accoring to Kouzuki, it creates an electrowave from her amplified brain waves and bioelectricity, which excites the Nanomachines that exists in the soil and atmosphere, then adding moment to the assembled crystals and so on……
Anyway, it means she can transform this arm freely like tentacles, and create various objects using debris. Convenient, isn't it?

