Nakuru Akizuki/ Ruby Moon is an annoying transfer student in Touya/Tori's and Yukito/Julian's class. Nakuru has a crush on Touya/Tori, much to his chagrin. Nakuru isn't all "she" seems as she's a man. However, he isn't even human. He likes beng a girl as they are prettier.
Nakuru lives with Eriol/Eli. His true form is Ruby Moon, Eriol/Eli's Moon Guardian. He seems to take great pleasure in tormenting Yukito/Julian as Yue is the moon guardian.
Her job is to stop Yukito/Julian from finding out who he really is.
Ruby Moon
He has pink hair and has huge butterfly wings.