The Strongest Sage with the Weakest Crest: Iris, Lurie and Alma

Lurie (yellow hair) is the daughter of the Abendroth Family who is in love with Matthias and got good healing magic skills and swordsmanship after meeting him who taught her a lot on those things, and she bears the First Crest, similar to Matthias's previous reincarnation. Alma (short sliver hair) is the third daughter of the Lepucius Family who is the archer-type fighter of the trio and Lurie's longtime friend, she bears the Second Crest despite having lesser magic power than her friends. Iris (red hair) is the dragon girl who was one of the strongest and oldest dragons in existence. In her past, she is the only person alive who knows about Matthias' true self and was told by him to keep it as a secret for over a thousand years until he was reborn to the present-day magic world. This is only on Episode 7.

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