Tessa and Cyn

It is not easy to ascertain Cyn's real personality and actual mannerisms, as little is known of her from before her disposal, and after rebooting she has no control over herself due to the Solver possessing her. That being said, when puppeteered by the Absolute Solver, she comes off as having a chilling personality that unsettles those around her due to her mental and physical deformities. Lacking any normal semblance of emotions, she resorts to using mimicry and imitation to behave like a real person would, speaking her actions aloud ("light sip", "sheepish nod", "giggle"), but she was capable of actually laughing. Her posture and gait are awkward, stilted, and off-balance. Her neck joint was also loose, and she had to support her head with her hand. When she is seen standing still she is mostly standing with her feet pointed inward. When around her "big brother," N, and mistress Tessa, the Solver tries to present a childish and happy façade to keep suspicions away. Otherwise, it was more willing to show its true colors: angry, spiteful, and violent, seeking retribution on the rest of the Elliott family for the abuses heaped upon her and her fellow Workers. Likewise, it also has no qualms about killing Tessa after getting in the way of the massacre at the gala and later grafting her corpse onto her body to impersonate her as a means of deceiving V and N into doing its bidding.

In her youth, Tessa was a very lively and kind-hearted individual, although somewhat morbid, hinted at by the décor in her room. Young Tessa was asocial, having little to no interest with other humans and didn't know how to interact with them, exclaiming that she had "only ever talked to robots." Despite her parent's dismay, she had an affinity towards drones and preferred to spend her time with them instead. While Tessa was usually seen close to J, N appeared to be her favorite drone.

The Elliott Manor is a large, luxurious mansion located surrounded by a dense forest, with several crows flying around it, with a big hall, a bar to visit, a library with many books, and Tessa's room. Yet beneath all of this luxury lies a basement, wherein Cyn is often locked within by Tessa’s mother, Louisa and father, James, simply for her creepy appearance and demeanor.