She reminds me of Chino from Gochiusa

Melody from Succubus Duel by irojikake matome

I do not own any of the characters depicted in this work. All characters, names, and related elements are the property of their respective creators and copyright holders. This work is for entertainment purposes only, with no intention to infringe upon any copyrights.

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Melody

melody6135, purple hair, twintails, long hair, blue eyes, hair bow, plaid bow, blue bow,
school uniform, blue sweater vest, green bowtie, dress shirt, juliet sleeves,
pleated skirt, plaid skirt, blue skirt,
white thighhighs,
loafers,
huge breasts,

staff, holding staff, mage staff