Ryuen operates on a line between man and object. They have a difficult time understanding the concept of human emotions as they usually act purely on logic. Their number one priority is to carry out any given task in the quickest most effective way possible. Due to their robotic way of going about things, most don't even consider them to be human and prefer to see them as a tool.

Ryuen themselves felt they were closer to that of a tool, until they were introduced to the concept of being human for the first time. Now, they struggle to return to their doll-like mindset, and have this innate interest in wanting to be human. Though they may not understand social cues, they try their best to think for themselves instead of relying too much on orders.