In the anime and manga, Robin is introduced as Chocolat and Vanilla's guardian in the Human world (- and later on as Saule and Houx's caregiver as well).
In the Human world, he is a famous rock star - and he is supposedly the wizard from the magical world; whom collects more hearts than any other witch or wizard, with his job.
He is seen throughout the series - especially, in the anime, to have a throng of female fans surrounding him. He can collect hearts very easily, in enormous quantities.
His heart holder is found inside his ring. Facial masks are supposedly what helps retain his youthful appearance.
- His name can also be romanized as "Rock 'n' Lovin'", from Japanese.
- It is apparent, that he is one of the most powerful wizards in Le Royaume - since he was able to fight Glacé by himself, towards the end of the series.
- While his age is unknown, he is rumored to be over 6,000 years old.