my cyborg ocs, CY-4N and MAG-3NTA , aka Cy and Mag. they're both sisters. i havent really developed them as much yet but:

Cy is the older one. shes pretty dense and gullible. dead-pan and monotone. she doesnt many expressions and usually has a dead-pan look. does she have feelings? it doesnt seem like it. im sure she can give a small smile though. (´ω｀人) but who knows what makes her "happy". her model is built with speed and attack.

Mag is the younger "newer" model. installed with expressions, feelings, and emotions. she's pretty playful and cocky. shes aware her sister is reckless at times thus she utilizes her defense and support built to aid Cy.