| Mr. Aru
| Original Name
|| Aru Sensei
| First Appearance
|| Toshiki Masuda
|| Grey Green
|| Little Fairilu
|| Teacher of Dark Magicology
Mr. Aru (アル先生 Aru Sensei?) is a Legend Fairilu. He is one of the characters of the Rilu Rilu Fairilu franchise.
- Mr. Aru's name might come from Arukanetto (アルカネット?), Japanese for alkanet.
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