Lunara

"I Lost Indigo As My Student Because Of You Mysticat, But Nothing Less She Became A Doremi High Student"

Lunara is a one of Acme Prep sensei that lost Indigo as a student of Acme Prep Duel School but even definitely a behind the issue Lunara was a Sorcerer Class Centurion to train her Sorcerers to use great amount of mana they charged

She was a Rival of Doremi High sensei Mysticat who got blame for losing Indigo as her main student She trained also it was revealed that Lunara is Indigo's former sensei who being rude to her before  She was a Doremi High Student and witnesses Indigo to save Team Manny from her Principal plan upon destroying them