Aetoniki Sargantanos is a mysterious and enigmatic character from the anime and manga series 'Mahoutsukai no Yome' (The Ancient Magus' Bride). Serving as a powerful mage from the College, Aetoniki plays a crucial role in the later arcs, acting as both an advisor and an instigator for the main characters. With a calm demeanor and sharp intellect, Aetoniki often manipulates situations from behind the scenes, making him a formidable presence and a key figure in the series' unfolding magical conflicts.