|Season||Guardian Angels Of The Sky Series|
Hikasa Yoko (as child)
Loo () a villain of the series having his debut appearance in Guardian Angels Of The Sky. Being the youngest of the group, the others usually don't trust him or think that he is too young. Loo acts careless and likes to tease others. He is easily offended, gets confused very fast. In episode 10 he falls in love with Shirosora Diamond and changes to the good side. A few episodes later, he decides to join the Cures and calls himself then Nobumoto Quartz.
- Main article: Loo / History
Zeremk (ゼレメク?) - Zeremk is Low's real last name. He usually keeps his name as a secret, especially from Sapphire as for common reasons. The literal translation of Zeremk is "Quartz", the origin of his earth name.