I got a shiny Floatzen and other Pokemon from my friend in Pokemon Ultramoon.
The problem is I can't rename them. My friend named the shiny Floatzen "Scatweasel", for example. I thought I could just take them to Name hater and get them renamed to their original names but it's not possible.

What can I do? Is it possible to trade them back to my friend and have him rename them?