d5no is a builder for Royale High.
If a player meets d5no in game, they will receive the "You Met Royale Developer d5no!" badge that reads:
Hi, I am d5no! I'm a builder for Royale High! I can be found on Twitter @d5no_ where I interact with my followers and post development updates of whatever I'm building. Feel free to say hi to me if you see me around!