Also, although most of that society uses chosen names, Ruth is still called by their birthname despite technically choosing Cadmium, hence they ended up known as Ruth Cadmium. Ruthenium is a silvery metal that is known for being resilient, and Cadmium is used in control rods in nuclear reactors,

so I figured the name would be a nice pun considering the backstory. Also, they go by they/she. Also, I still despise drawing beaks please end me