Yuri Drewes, Grand Magus of the Royal Magi Assembly, rose from common birth to nobility after his extraordinary magical talent prompted adoption by the Marquis Drewes. His mid-length purple hair and sharp, similarly colored eyes complement a distinctive appearance, often described as if he stepped out of a painting, typically clad in a loose robe and mage uniform. Outwardly cheerful, carefree, and passionately engaged, especially regarding magical research, Yuri harbors an intensely focused and analytically detached interior. His singular devotion lies in researching magic and magical powers, leading him to disregard administrative duties entirely, which he delegates without hesitation to Magus Hawke. Yuri commands extensive magical capabilities. Before Sei Takanashi's arrival, he possessed the kingdom's highest magic power and MP levels. Proficient in all elemental affinities, his arsenal includes Fire Lance, Inferno, Wind Cutter, Ground Spear, Round Spark, Ice Spear, Heal, and Holy Arrow. He uniquely wields appraisal magic on individuals, an ability exclusive to him, and his high aptitude enables rapid evaluation and analysis of new magical phenomena. He personally conducted the saint summoning ritual intended for one individual; an error during the casting ripped open a portal, unexpectedly summoning both Sei Takanashi and Aira Misono. This event sparked his sustained fascination with Sei's saintly powers, prompting meticulous observation and testing whenever she acquires new skills. Sei recognizes him as a deeply knowledgeable magic expert and effective teacher, despite his administrative shortcomings. While Sei's innate capabilities ultimately surpass his own, diminishing his status as the kingdom's most powerful magic user, Yuri's character consistently prioritizes research, particularly concerning saintly powers, while steadfastly avoiding bureaucratic responsibilities. His portrayal remains consistent across media, focusing on this established role.